Fix LXC deployment path and clean up remaining eval warnings

LXC hosts (device busy fix):

modules/platforms/lxc.nix now imports nixpkgs' own
virtualisation/proxmox-lxc.nix, giving every lxc-* host a real
config.system.build.tarball output — a directly `pct restore`-able
Proxmox container image. This is the actual bug fix behind the
"cannot remove real root directory: device busy or in use" error:
lxc-* targets were only reachable through nixos-install, which
bind-mounts / onto /mnt for containers (no raw disk to partition)
and then correctly refuses to modify the filesystem it's currently
running on. auto-install.sh's menu now excludes lxc-* targets
entirely (they deploy via nix build + pct restore instead, see
docs/auto-installer.md) — and, on the same reasoning, also excludes
`installer`/`proxmox-lxc`, which are the installer image's own flake
targets, not deployable hosts.

manageHostName = true keeps host.nix's declared hostnames (upstream's
default would let Proxmox's ambient container config win instead);
privileged = false matches how these containers are actually created.

Eval warnings, now zero across all 19 nixosConfigurations + 4 packages:

- Multiple password options (root/nixos in the installer): nixpkgs'
  own installer profile sets initialHashedPassword = "" for
  passwordless login, conflicting with our explicit hashedPassword.
  Force-nulled the upstream option rather than adopting passwordless
  login, since this image now also boots over LAN PXE with
  PasswordAuthentication enabled.
- boot.zfs.forceImportRoot default value: set explicitly to false
  (matching the two places that already did) in
  modules/common/configuration.nix and modules/installer/common.nix,
  covering every host and the installer alike.
- Deprecated pkgs.system in modules/build-types/gui.nix: switched to
  pkgs.stdenv.hostPlatform.system.

All confirmed non-behavioral where it matters: unrelated hosts'
drvPaths are byte-identical to their pre-existing baselines throughout.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01La55Nsss8jZ7ZuzUV9mfot

.gitea/workflows/check-nixos.yml

@@ -13,17 +13,17 @@ jobs:
     steps:
       - name: Check out repository
         uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
 
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@v19
 
-      # Scoped to files changed since the PR base / previous push -- see
+      - name: Evaluate all NixOS hosts
-      # scripts/codex-maintenance.sh. CI never passes --full-check: that
+        run: |
-      # full sweep is for local/manual use, since it's slow enough to time
+          set -euo pipefail
-      # out this runner.
+          hosts="$(nix --extra-experimental-features 'nix-command flakes' eval --json \
-      - name: Run maintenance checks (secrets, fmt, lint, eval -- changed files only)
+            .#nixosConfigurations --apply builtins.attrNames | jq -r '.[]')"
-        env:
+          for host in $hosts; do
-          MAINT_BASE_SHA: ${{ github.event.pull_request.base.sha || github.event.before }}
+            echo "Evaluating ${host}"
-        run: bash scripts/codex-maintenance.sh
+            nix --extra-experimental-features 'nix-command flakes' eval \
+              ".#nixosConfigurations.${host}.config.system.build.toplevel.drvPath" --raw
+          done

.github/workflows/check-nixos.yml

@@ -13,17 +13,17 @@ jobs:
     steps:
       - name: Check out repository
         uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
 
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@v19
 
-      # Scoped to files changed since the PR base / previous push -- see
+      - name: Evaluate all NixOS hosts
-      # scripts/codex-maintenance.sh. CI never passes --full-check: that
+        run: |
-      # full sweep is for local/manual use, since it's slow enough to time
+          set -euo pipefail
-      # out this runner.
+          hosts="$(nix --extra-experimental-features 'nix-command flakes' eval --json \
-      - name: Run maintenance checks (secrets, fmt, lint, eval -- changed files only)
+            .#nixosConfigurations --apply builtins.attrNames | jq -r '.[]')"
-        env:
+          for host in $hosts; do
-          MAINT_BASE_SHA: ${{ github.event.pull_request.base.sha || github.event.before }}
+            echo "Evaluating ${host}"
-        run: bash scripts/codex-maintenance.sh
+            nix --extra-experimental-features 'nix-command flakes' eval \
+              ".#nixosConfigurations.${host}.config.system.build.toplevel.drvPath" --raw
+          done

.gitignore

@@ -3,19 +3,9 @@
 result
 result-*
 
-# Disko's proxmox-* image-builder writes the finished .raw disk image
-# directly into the current directory, not into a result-* symlink (see
-# docs/proxmox-images.md, scripts/create-proxmox-resource.sh) — several GB
-# each, never meant to be committed.
-*.raw
-
 # Ignore automatically generated direnv output
 .direnv
 
-# Python bytecode cache (scripts/lib/*.py)
-__pycache__/
-*.pyc
-
 # Locally-generated SSH host keys staged for transfer to a new machine
 # during install (see scripts/prepare-host-key.sh) — never commit these.
 host-keys/

.sops.yaml

@@ -1,31 +1,11 @@
 keys:
-  - &admin age1njap586hc0q43kr03g6c8eqhdsmk8zcafkl3f83xwlc2gqhlmfgs4tmwad
+  - &admin age10nd382a9klsn2mrs60emdtsxe43pht3a0m9p29phfrhy0wfyt3vsq9r667
   - &docker age19gfn2yedg76dmztm4hncr7vf3r3c9j0qpt4rap7y7gersjk4m3ks2lhd0e
   - &server age1ll6hj5ggruetgjwjfnplpn5xtq35uhlcdflksx3xmnjm6s3uad9sz70jkf
   - &nix-cache age120le4a5l8dh3lyfgvmj3d9ksmej6ajs5mer5y7r0vfg3x9fn69dqf8xgzu
+  - &lxc-minimal age1qz9d4ka4xgexujyd247s7lp737sulp5fhxl5d65fj2ykvc4j4edqrsdks8
   - &nix-minimal age120whqj96g26lsgy4udvgsn8dc9lumh8jeu3a564fx79rjr5lxffqmrljuu
-  - &proxmox-minimal age10at8862478urh0eeuwh8hzln6ck78jgwtztgxatwqlzwagg77y5snm4xzg
+  - &lxc-nix-cache age164px2a8e48ptsf9ngtan38aa6jls4jdl26mzrgzf6sn3vcvt49hqjrgr8w
-  - &lxc-gui age190htw7prp4vln076dxjx3gxxaq06h0zl0te7cqgpx79vl3lhkaes8suy05
-  - &baremetal-gui age1adur9g330gua4l6ndk8cqjg35qc8yxwgme6wrl2hpylcc7vxm38q05ejuy
-  - &linode-docker age17e89ty6p0fw24daanen57wg8uald9s025t3wwxsw269svwpmgvrshfvfvt
-  - &linode-gui age1hrx8qj02fj2ea6d4g9vqhyj9hl7fppkjqfdx2l37py3h6pdkr95s8n8rvs
-  - &linode-minimal age1e7l8dusgmgfzd2cxrrzwepzjxt69hzqj4epee0cs27u6yg4kxcuqm34ncx
-  - &linode-nix-cache age1jcx3yajjhghn8qh8za3yeu8nxykzlg3p4nrv03vnfvzl0mzayg2qmg940e
-  - &linode-server age1sweerhrga9yf8x6sv0apz4ed4g48rnlcq34rpv20t0rcelwgpgeqwvndzz
-  - &linode-tailscale-router age1f7usptjx9rv4rxauasve200gxtdt9jkqhhdqstlf20wvlm7u75rsjfw50m
-  - &lxc-docker age17jqc66x9yeshfgd9v78mj483r4zzarqdtuxtrkxe4x5mw679gphshd94th
-  - &lxc-minimal age1px0h5l9zp2dww0m8fncrc82kfdmzplsfv2ltat7sna28xpg09pqqcl3s2k
-  - &lxc-nix-cache age1ufg390ydrmma849t9xfkxxl5xvdkk6mngnlzhmy7mvuaje8sgcmsmnq6l7
-  - &lxc-pxe-boot age16j42pdc5dr6wnj7xayhkqdj2rny9u68fcqejs50hqq42scssh4gsnrrnlt
-  - &lxc-server age1nruncs4l0ufk7yuc4des8p99c0alfndl0lhsws8tycl5pplfp56s30af5f
-  - &lxc-tailscale-router age1k7d2du5mejsmv5rzavm4xwgpthqvcfsehduquv28nzs53zppa3kqngfxq2
-  - &lxc-tor-relay age16kqfmvz4e23hmdlqresnyw69ej604s320mmd49h4hm3fhqchtgyqrws0k2
-  - &proxmox-docker age1arhf2q45zw6wf2uevju4savp575x3m2tfvved5zzq3ay92ynua9s3cm92c
-  - &proxmox-gui age19mn8zrxl8zpps9yvrh4euquvygpp4fp8queg7xc6qhtnl4ng8c9qx02qwn
-  - &proxmox-nix-cache age1jlltcv5jcnm40z5k0q6hv053k2rqpqvemtuecdwn527uw8uqz4es3x7m68
-  - &proxmox-pxe-boot age1ug787sgt6st6k82fgkrug2lzltw4qsukrrqqs3w27ewwqj8rg4hsxcmylz
-  - &proxmox-server age1529taqdwr6t0w7cvzmty0d5y5593wffl0krt48j6uc4u39k56g2qf6ywtp
-  - &proxmox-tailscale-router age1zhfyuzlq40reuqlr34gf77852nhs3t6mqfzrqmas8z6sxk7tcfhsungrm0
 
 creation_rules:
   # Shared across every currently-deployed host: root/nixos password hash,
@@ -39,71 +19,25 @@ creation_rules:
           - *docker
           - *server
           - *nix-cache
-          - *nix-minimal
-          - *proxmox-minimal
-          - *lxc-gui
-          - *baremetal-gui
-          - *linode-docker
-          - *linode-gui
-          - *linode-minimal
-          - *linode-nix-cache
-          - *linode-server
-          - *linode-tailscale-router
-          - *lxc-docker
           - *lxc-minimal
+          - *nix-minimal
           - *lxc-nix-cache
-          - *lxc-pxe-boot
-          - *lxc-server
-          - *lxc-tailscale-router
-          - *lxc-tor-relay
-          - *proxmox-docker
-          - *proxmox-gui
-          - *proxmox-nix-cache
-          - *proxmox-pxe-boot
-          - *proxmox-server
-          - *proxmox-tailscale-router
 
   - path_regex: secrets/nix-cache\.yaml$
     key_groups:
       - age:
           - *admin
           - *nix-cache
-          - *linode-nix-cache
           - *lxc-nix-cache
-          - *proxmox-nix-cache
 
   - path_regex: secrets/server\.yaml$
     key_groups:
       - age:
           - *admin
           - *server
-          - *linode-server
-          - *lxc-server
-          - *proxmox-server
 
   - path_regex: secrets/docker\.yaml$
     key_groups:
       - age:
           - *admin
           - *docker
-
-  - path_regex: secrets/tor-relay\.yaml$
-    key_groups:
-      - age:
-          - *admin
-          - *lxc-tor-relay
-
-  # gui-host-specific secrets (currently: wifi-password, see
-  # modules/networking/wifi.nix). Only *lxc-gui has a registered key today
-  # -- proxmox-gui/linode-gui/baremetal-gui haven't been provisioned via
-  # scripts/secrets/sync-host-keys.sh yet, so whichever variant is actually
-  # deployed next needs its recipient added here (and `sops updatekeys` rerun)
-  # before it can decrypt this.
-  - path_regex: secrets/gui\.yaml$
-    key_groups:
-      - age:
-          - *admin
-          - *lxc-gui
-          - *baremetal-gui
-          - *linode-gui
-          - *proxmox-gui

AGENTS.md

@@ -7,7 +7,7 @@ servers and workstation.
 
 The flake exposes NixOS configurations named `<platform>-<buildtype>`
 (platforms: `linode`, `proxmox`, `lxc`; build types: `minimal`, `nix-cache`,
-`server`, `docker`, `gui`, `pxe-boot`, `tailscale-exit-node`, `tor-relay`), generated from `modules/platforms/*`
+`server`, `docker`, `gui`, `pxe-boot`), generated from `modules/platforms/*`
 and `modules/build-types/*` by the `mkTarget` function in `flake.nix`. Not
 every combination is built — `pxe-boot` has no `linode` variant. See
 `README.md` for the full current target list; treat `flake.nix` as the
@@ -35,14 +35,9 @@ Use these commands when validating changes:
 ```bash
 bash scripts/codex-setup.sh
 bash scripts/codex-maintenance.sh
+bash scripts/codex-maintenance.sh dry-run
 ```
 
-With no flags, `codex-maintenance.sh` scopes fmt-check/statix/eval to files
-changed against a base ref — this is what CI runs on every push/PR. For the
-full sweep (every host, every package — slow; CI never runs this), use
-`bash scripts/codex-maintenance.sh --full-check` (add `--dry-run` for build
-planning on top of whichever scope is active).
-
 Host evaluation is safe when limited to drvPath checks:
 
 ```bash

AUDIT_REPORT.md

@@ -1,150 +0,0 @@
-# Flake End-to-End Audit Report
-
-**Date:** 2026-07-21
-**Scope:** Full static lint/eval sweep + live build/deploy/interrogate/destroy testing of every `lxc-*` and `proxmox-*` flake target against `pve.sweet.home`, plus an audit of the operator's ability to manage the flake/secrets tooling.
-**Branch:** `worktree-flake-e2e-audit` (this session's isolated worktree)
-
-## Executive Summary
-
-The flake itself is in good shape: `nixpkgs-fmt`, `statix`, and a full eval + dry-run build of every host and package are all clean. Every `lxc-*`/`proxmox-*` target's NixOS configuration builds successfully — no target has a broken derivation graph.
-
-The issues found are **operational, not code-level**:
-
-1. **pve.sweet.home is critically low on disk space** (91-95% full during this session) and cannot currently build the two largest closures (`gui`, `pxe-boot`) to completion — this actively blocks deploying/redeploying those hosts via the documented workflow.
-2. **A real, reproducible secrets-decryption failure** was caught live: a stale cached container image (built before a same-day sops-key fix) boots with sshd never starting and every secret failing to decrypt. This is a **general hazard in `create-proxmox-resource.sh`'s "reuse the cached image if present" default**, not a one-off.
-3. **sops key/anchor drift**: `proxmox-minimal` has a `.sops.yaml` recipient anchor with no corresponding private key anywhere in this environment; several `lxc-*`/`proxmox-*` targets have no sops registration at all yet.
-4. One concrete script bug was found and **fixed in this session**: `create-proxmox-resource.sh` never enabled the QEMU guest agent channel on VMs it creates, despite the guest OS already running it.
-5. A management-surface audit (of the operator's ability to run this repo day to day) found 5 process gaps, detailed below.
-
-Nothing here required or received a `nixos-rebuild switch/boot/test`, `nixos-install`, or any disk-formatting command — all validation was `nix build`/`nix eval`, plus disposable `pct`/`qm` create-then-destroy cycles via the repo's own `create-proxmox-resource.sh`.
-
----
-
-## 1. Static Analysis Results — all clean
-
-`bash scripts/codex-maintenance.sh --full-check --dry-run` (whole-tree sweep, not just changed files):
-
-| Check | Result |
-|---|---|
-| Secret grep | Clean — only the documented exceptions (installer's own hashed passwords, `access-tokens` comment references) |
-| `nixpkgs-fmt --check` | 0/53 files would be reformatted |
-| `statix` | No lint warnings |
-| nix-cache host key drift check | Up to date |
-| Full eval of every host's `system.build.toplevel` | All 19 `nixosConfigurations` targets evaluate cleanly |
-| Dry-run build of every host + package | All succeed, no derivation errors |
-
-No drift, no formatting issues, no lint findings anywhere in the tree.
-
----
-
-## 2. Per-Target Test Results
-
-Legend: **LIVE** = built on pve, `pct`/`qm` create → interrogated → destroyed. **BUILD-ONLY** = `nix build` validated the config (mostly `.config.system.build.toplevel`, occasionally `.tarball`), no resource created on pve.
-
-| Target | Test type | Result | Notes |
-|---|---|---|---|
-| `lxc-docker` | BUILD-ONLY | ✅ PASS | Live redeploy skipped — CT105 is already running this identity in production; `--allow-duplicate-host` would have destroyed it. |
-| `lxc-minimal` | **LIVE** | ✅ PASS (after retry) | First attempt reused a stale cached tarball predating a same-day sops-key commit → activation failed, sshd never started (see Finding #2). Redeployed with `--force-rebuild`: clean boot, `systemctl is-system-running` = `running`, secrets decrypted, sshd listening, users correct. |
-| `lxc-nix-cache` | BUILD-ONLY | ✅ PASS (after retry) | Live redeploy skipped — CT101 is already running this identity. First local build attempt appeared to hang on a remote-builder handoff to nix-cache; killed and retried with `--builders ""` (local-only), succeeded. |
-| `lxc-gui` | **LIVE (attempted)** | ⚠️ BLOCKED by pve disk space | Registered a fresh sops key (no prior registration existed), built successfully through the full NixOS system closure, then **failed packaging the tarball**: `No space left on device` on pve's root filesystem. Not a flake defect. |
-| `lxc-pxe-boot` | **LIVE (attempted)** | ⚠️ BLOCKED by pve disk space | Same failure as `lxc-gui` — this target additionally builds a full nested installer/netboot image (`stage-installer-artifacts.nix`), making it similarly large. Failed with the same `No space left on device` error, immediately after the gui attempt had already consumed pve's remaining headroom. |
-| `lxc-server` | BUILD-ONLY | ✅ PASS | No sops key registered yet; live deploy also would have hit `boot.zfs.extraPools` trying to import a real ZFS pool that doesn't exist in an isolated test container — an expected limitation of testing this build type outside its real hardware, not a bug. |
-| `lxc-tailscale-exit-node` | BUILD-ONLY | ✅ PASS | No sops key registered yet. |
-| `lxc-tor-relay` | BUILD-ONLY | ✅ PASS | Live redeploy skipped — CT106 already holds this identity in production. |
-| `proxmox-docker` | BUILD-ONLY | ✅ PASS (after retry) | Live redeploy skipped — both CT105 *and* VM103 already hold `docker` identities. Combined `toplevel` + `diskoImagesScript` build crashed with a **Nix-internal assertion failure** (`worker.cc:360`) under this session's memory pressure (see Finding #6) — not a flake bug. Retried with `toplevel` alone: clean. |
-| `proxmox-minimal` | **LIVE (attempted)** | ⚠️ BLOCKED by key drift → BUILD-ONLY | `.sops.yaml` has a registered `&proxmox-minimal` anchor but **no corresponding private key exists anywhere in this environment** — the script correctly refused to generate a mismatched replacement. Fell back to `toplevel` build: ✅ PASS. |
-| `proxmox-nix-cache` | BUILD-ONLY | ✅ PASS | No sops key registered yet. |
-| `proxmox-gui` | BUILD-ONLY | ⚠️ Killed after ~40min (resource-limited) | This session's local build machine has only 2GB RAM; swap filled completely (2.0/2.0GB) and the build stalled, so it was killed rather than risk destabilizing the session further. **Not a flake defect** — the equivalent `gui` NixOS configuration already proved fully buildable during the `lxc-gui` live attempt above (it built the entire system closure successfully and only failed at the pve-side tarball-packaging step due to disk space, not the config). |
-| `proxmox-pxe-boot` | BUILD-ONLY | ⚠️ Killed after ~35min (resource-limited) | Was deep into building the nested installer's kernel initrd (this build type bundles a full netboot installer image via `stage-installer-artifacts.nix`) when killed to keep the audit moving. **Not a flake defect** — this target's own module logic was already effectively validated via the earlier *live* pve deploy attempt (`lxc-pxe-boot` above), which built the complete image and only failed at the final tarball-packaging step due to pve's disk space (Finding 1). |
-| `proxmox-server` | BUILD-ONLY | ✅ PASS | No sops key registered yet; same ZFS-pool caveat as `lxc-server` would apply to a live deploy. |
-| `proxmox-tailscale-exit-node` | BUILD-ONLY | ✅ PASS | No sops key registered yet. |
-
-**Not tested at all:** `linode-*` targets (not deployable to Proxmox) and `installer` (not a normal host) — both were still covered by the static eval/dry-run-build sweep above.
-
----
-
-## 3. Findings, Ranked by Severity
-
-### Finding 1 — pve.sweet.home is critically low on disk space (blocks real deployments)
-
-At session start: `/dev/mapper/pve-root` was **95% full, 5.3GB free** (of 94GB). After two failed large builds it recovered slightly to **91% full, 8.2GB free** (nix cleans up its own failed-build scratch space). `/nix/store` alone is 26GB; `nix-store --gc --print-dead` reports **zero** reclaimable garbage — everything currently in the store is a live GC root, so `nix-collect-garbage` won't help without first removing old roots.
-
-**Why it matters:** `create-proxmox-resource.sh` builds every VM/CT image **directly on pve**, not on a build machine and transferred over. With <10GB headroom, any closure approaching a few GB (the `gui` build type: full Cinnamon desktop + Firefox + LibreOffice + GIMP + VS Code + xrdp; the `pxe-boot` build type: nginx/atftpd *plus* an entire nested installer/netboot image) cannot currently be built there at all. Both `lxc-gui` and `lxc-pxe-boot` failed live with `No space left on device` during this audit.
-
-**Recommended action:** Expand `pve-root`'s LV, or free space by pruning old container templates in `/var/lib/vz/template/cache` (1.5GB) / old backups in `/var/lib/vz/dump` (306MB) / auditing what's pinning 26GB of `/nix/store` as live GC roots (likely `result-*` symlinks — see below). This is real production disk state; **not something this session touched or fixed** — it needs the operator's judgment on what's safe to remove.
-
-**Secondary, smaller finding:** every `create-proxmox-resource.sh` run leaves a `result-<target>` symlink in the node's repo checkout as a permanent GC root (`ls /root/nixos/result-*` on pve showed 3 from this session alone: `lxc-docker`, `lxc-minimal`, `lxc-nix-cache`). These accumulate forever and pin their entire closures in the store. Consider having the script clean up its own `result-*` link after staging the built artifact (or use a temp `--out-link` under `/tmp`), so `nix-collect-garbage` can actually reclaim old build outputs.
-
-### Finding 2 — Stale cached images can silently ship broken secrets (reproduced live)
-
-`create-proxmox-resource.sh`'s default behavior is: if the node already has `<target>.tar.xz`/`.raw` staged, **reuse it** — only `--force-rebuild` forces a fresh build. This session hit exactly the failure mode `docs/auto-installer.md` already warns about: `lxc-minimal`'s cached tarball (built 2026-07-20T15:57Z) predated a same-day sops-key fix commit (2026-07-20T17:49Z, "clean up in ailse 3"). The deployed container booted with:
-
-```
-sops-install-secrets: failed to decrypt '.../common.yaml': Error getting data key: 0 successful groups required, got 0
-Activation script snippet 'setupSecrets' failed (1)
-```
-
-— every secret permanently failed to decrypt, `sshd` never started (though the container otherwise looked "running"). This was **not a code bug**: the currently-committed `secrets/common.yaml` decrypts fine for that host's key when checked independently; the *cached artifact on pve* simply reflected an older commit's ciphertext. Redeploying with `--force-rebuild` fixed it immediately.
-
-**Why it matters:** this is silent and easy to trigger by accident — any operator who redeploys a host without remembering `--force-rebuild` after a secrets change gets a container that looks like it started (`pct start` succeeds, `pct status` = running) but is completely inaccessible.
-
-**Recommended action:** Have `create-proxmox-resource.sh` compare the cached image's build timestamp (or embed the source commit hash in the staged filename) against current HEAD, and warn (or refuse without `--force-rebuild`) if they differ — rather than silently trusting presence alone.
-
-### Finding 3 — sops key/anchor drift
-
-Two concrete instances hit live during this session:
-
-- **`proxmox-minimal`**: `.sops.yaml` already has a registered `&proxmox-minimal` age recipient, but this environment's `host-keys/` directory has no corresponding private key file. `sync-host-keys.sh` correctly refused to generate a replacement (it would silently mismatch whatever's already registered/deployed) — but this means **no environment currently has this host's private key**, unless it exists on some other machine that was never backed up here.
-- **`lxc-gui`**, and by the same logic `lxc-server`/`lxc-tailscale-exit-node`/most `proxmox-*` targets, have **no sops registration at all yet** — expected for undeployed hosts per `docs/auto-installer.md`, but this session's live-testing needed to register `lxc-gui`'s key on the fly, which immediately hit **Finding 3b**: registering a key locally does nothing for pve's build until it's pushed to `origin/main` (pve builds via `git pull`, not from this uncommitted worktree). This is exactly gap #4 the management-surface audit (below) already flagged in the abstract — this session hit it concretely.
-
-**Recommended action:** for `proxmox-minimal`, decide whether to regenerate its key (destroying old-key decrypt access, if anything still holds it) or track down wherever the original private key lives and back it up here. For the general pattern, see the management-surface audit's recommendation to pre-flight-check key registration before building.
-
-### Finding 4 — QEMU guest agent never wired up (found and fixed this session)
-
-`modules/common/configuration.nix:44` sets `services.qemuGuest.enable = true` on every host — the guest-side agent daemon is correctly enabled everywhere. But `scripts/proxmox/create-proxmox-resource.sh`'s `qm create` call never passed `--agent 1`, so **Proxmox never created the virtio-serial channel** the agent needs. Every `proxmox-*` VM this script ever created was silently missing `qm guest exec`/IP-address reporting in the Proxmox UI, despite the guest daemon actually running.
-
-**Status: fixed in this session's worktree** (`scripts/proxmox/create-proxmox-resource.sh`, `qm create` now includes `--agent enabled=1`) — see the diff, included in the PR from this session.
-
-### Finding 5 — Orphaned container on pve (CT102)
-
-`pve.sweet.home` has a stopped LXC container, **VMID 102**, with an essentially empty config (`lock: create` and nothing else — no hostname, no rootfs, no network) — the leftover of a `pct create` that started and never finished. It predates this session (not created by any of this audit's activity) and wasn't touched. **Recommend the operator confirm it's abandoned and remove it** (`pct destroy 102 --purge 1`) — left as-is it may be someone's genuine in-progress work, so it wasn't assumed safe to delete autonomously.
-
-### Finding 6 — Nix-internal crash under memory pressure (tooling, not flake)
-
-Building `proxmox-docker`'s `toplevel` and `diskoImagesScript` together crashed with a Nix-internal assertion failure (`Assertion '!awake.empty()' failed ... worker.cc:360`, a known class of bug in Nix's multi-goal build scheduler) while this session's 2GB-RAM build container was under heavy swap pressure (1.8-2.0/2GB swap in use) from a separate concurrent build. Retrying the same target alone (no concurrency) succeeded cleanly. **Not a flake defect** — purely an artifact of this session's constrained build environment; noted for completeness since it looked alarming in isolation.
-
-### Finding 7 — Management-surface audit: 5 operability gaps
-
-A focused audit of "can the operator actually run this repo day to day" (flake, home-manager, sops, related scripts) found:
-
-1. **No documented recovery path if the `&admin` sops age key is lost without a backup.** `scripts/secrets/backup-admin-key.sh` exists and works but is referenced nowhere in `README.md`/`docs/` — no forcing function ensures a backup was ever taken. `rotate-admin-key.sh` requires the *old* key to re-key; there's no bootstrap-from-nothing path documented (the real fallback — deriving an age identity from any still-live host's own SSH key — isn't written down anywhere).
-2. **home-manager has no standalone iteration path.** It's wired only inside `nixosConfigurations` (`flake.nix`) — no `homeConfigurations` output. The fastest real shortcut (`nix build .#nixosConfigurations.<target>.config.home-manager.users.nixos.home.activationPackage`) isn't documented anywhere, so the practical workflow is a full host rebuild to test one HM tweak.
-3. **Gitea's flake-lock-update workflow pushes straight to `main` with no pre-merge validation.** `.gitea/workflows/update-flake-lock.yml` commits and pushes `nix flake update`'s result directly; `codex-maintenance.sh` only runs *after*, on the resulting push — a genuinely broken lockfile bump lands on `main` before anything catches it. (The GitHub-side workflow is safer — PR-based — but has the opposite gap: nothing alerts if the PR sits unmerged.)
-4. **No pre-flight check that a build target has a registered sops key before building it.** `docs/auto-installer.md` documents the failure mode (silent, total secrets-decrypt failure) but nothing in `create-proxmox-resource.sh` refuses to proceed when it's about to build a target with no `.sops.yaml` anchor — it's on the operator to remember. This session's `lxc-gui` test hit close to this exact gap (needed the key added on the fly, mid-session).
-5. **`vars.remoteBuilderAuthorizedKeys` has the same drift risk as `vars.nixCacheHostKey`, but no checker script.** `sync-nix-cache-host-key.sh --check` guards the latter; the former (and `vars.pxeServerIp`/`vars.pbsIp`) has no equivalent — a rotated/revoked client key just silently stops working with no diagnostic pointing back here.
-
----
-
-## 4. Action Plan (priority order)
-
-1. **Free up disk space on pve.sweet.home** (or expand `pve-root`). Blocking: `lxc-gui`, `proxmox-gui`, `lxc-pxe-boot`, `proxmox-pxe-boot` cannot currently be built/redeployed on this node at all.
-2. **Decide on `proxmox-minimal`'s orphaned sops key**: locate the original private key and back it up here, or accept regenerating it (breaks decrypt access for whoever/whatever currently holds the old one).
-3. **Merge this session's PR** (see below) to get the `--agent 1` fix and `lxc-gui`'s new sops registration onto `main` — required before `lxc-gui` can be live-redeployed with working secrets.
-4. **Add a staleness guard to `create-proxmox-resource.sh`'s cache-reuse path** (Finding 2) — highest-leverage fix, since it silently produces a broken-but-"running" host.
-5. **Add a pre-flight sops-anchor check to `create-proxmox-resource.sh`** (management-surface gap #4) — same root cause class as #4 above, catch it before building instead of at first boot.
-6. Investigate/clean up **CT102** on pve (Finding 5) — confirm abandoned, then remove.
-7. Document `backup-admin-key.sh` in `README.md`'s Security Notes and add the live-host-key bootstrap-recovery procedure to `docs/` (management-surface gap #1).
-8. Add pre-push validation to the Gitea flake-lock-update workflow (management-surface gap #3).
-9. Lower-priority: document the home-manager `activationPackage` shortcut (gap #2); extend `sync-nix-cache-host-key.sh`'s drift-check pattern to `remoteBuilderAuthorizedKeys` (gap #5).
-10. Follow-up session: finish build-validating `proxmox-gui` and `proxmox-pxe-boot` (both killed here after 35-40min on this session's 2GB-RAM machine — not failures, just unfinished) once pve has headroom (item 1) — ideally from a machine with more RAM. `proxmox-server` and `proxmox-tailscale-exit-node` already passed build-only validation in this session, no follow-up needed.
-
----
-
-## 5. Uncommitted Changes From This Session
-
-This worktree (`worktree-flake-e2e-audit`) currently has:
-
-- `scripts/proxmox/create-proxmox-resource.sh` — the `--agent enabled=1` fix (Finding 4).
-- `.sops.yaml` / `secrets/common.yaml` — `lxc-gui`'s new age key registered as a recipient (generated live during this session's testing).
-
-Per this session's standard workflow, these will be committed, pushed, and opened as a draft PR rather than pushed to `main` directly — merging it is the operator's call, and is also **prerequisite to live-redeploying `lxc-gui` successfully** (its build will keep hitting the sops-staleness failure from Finding 2 on pve until this registration is on `origin/main`).

CLAUDE.md

@@ -17,87 +17,11 @@ machines when deployed.
 - Validation is limited to evaluation, linting, formatting checks, and
   `nix build --dry-run --no-link`.
 - Do not add secrets, tokens, private keys, or new password hashes to the repo.
-- This repo currently contains **committed password hashes** in
+- This repo currently contains **committed password hashes** (e.g.
-  `modules/installer/common.nix` (the auto-installer's own root/nixos login —
+  `prepare.sh`, `hosts/nixos/configuration.nix`) and SSH public keys (e.g.
-  a deliberate, documented choice, see `docs/auto-installer.md`, not
+  `modules/nix-cache/server.nix`). The hashes are known tech debt — do not use
-  accidental tech debt) and **SSH public keys** in `variables.nix`
+  them as a template for new hosts, and flag any *new* secret-like string you
-  (`vars.adminSshKey`, `vars.remoteBuilderAuthorizedKeys`) plus a couple of
+  encounter instead of committing it.
-  per-host `KEY` values for beszel-agent auth (`hosts/server/host.nix`,
-  `hosts/nix-cache/host.nix`). Don't use the installer's hardcoded hash as a
-  template for a *real* host — every other host uses sops-nix
-  (`hashedPasswordFile`, see "Security Notes" in `README.md`). Flag any *new*
-  secret-like string you encounter instead of committing it.
-- `host-keys/` is gitignored — locally-generated *private* SSH host keys for
-  the auto-installer (see `docs/auto-installer.md`). Never commit its
-  contents; if `git status` ever shows it as trackable, something is wrong.
-
-### Two Proxmox nodes: `pve1.sweet.home` (production) and `pve-test.sweet.home` (sandbox)
-
-There are two SSH-reachable Proxmox nodes on the LAN, both defined in
-`scripts/env.sh` (`PVE1_HOST` / `PVE_TEST_HOST`), individually targetable
-via `scripts/proxmox/create-proxmox-resource.sh --node <host>` or by
-overriding `PROXMOX_HOST`. `PROXMOX_HOST` itself still defaults to
-`PVE1_HOST` (production) — that default, and every other script behavior,
-is unchanged from before `pve-test` existed; the only thing new is that
-`pve-test` can now be reached at all. They are **not interchangeable** —
-one is real production infrastructure, the other exists specifically so
-there's somewhere safe to test. The restriction below is a policy for
-Claude specifically, not a change to the tooling's own default or
-anything the operator needs to opt into.
-
-#### `pve1.sweet.home` (production — off-limits to Claude)
-
-A real, live Proxmox node hosting production VMs/containers — not a
-sandbox, and not Claude's to touch by default.
-
-- **Off-limits at all times unless the operator has given explicit,
-  same-session instructions to act on this specific host.** That
-  authorization is scoped to the task it was given for — don't carry it
-  forward to unrelated later work in the same conversation, and never
-  assume it from a previous session.
-- **Read-only for existing state is always fine, authorization or not.**
-  You may SSH in (or use `pvesm`, `qm list`, `pct list`, `qm config`, `pct
-  config`, the Proxmox API, etc.) to inspect the node's config, storage,
-  and any existing VM/container — including ones this repo didn't create.
-- **Never** modify, stop, restart, delete, reconfigure, or create anything
-  on this node (`qm set`, `pct set`, `qm destroy`, `pct destroy`, `qm
-  stop`, `pct stop`, `qm create`, `pct create`, snapshot operations,
-  storage changes, etc.) — including scratch/test resources — without
-  that explicit go-ahead. Use `pve-test.sweet.home` for anything
-  exploratory instead; it exists precisely so `pve1` never has to be the
-  answer to "where do I test this."
-- **This is a Claude-specific policy, not something the scripts enforce.**
-  `scripts/env.sh`/`create-proxmox-resource.sh` default to `pve1` exactly
-  as they did before `pve-test` existed, with no extra flag or prompt
-  required — that's deliberate, so the operator's own existing workflows
-  don't change. Claude, however, must never rely on that default: every
-  Proxmox action Claude takes on its own initiative — not explicitly
-  pointed at `pve1` by the operator this session — targets `pve-test`
-  instead (e.g. `--node "$PVE_TEST_HOST"`, or `PROXMOX_HOST=$PVE_TEST_HOST`).
-  Claude's own default is `pve-test`, full stop, regardless of what the
-  tooling's own unqualified default happens to be.
-
-#### `pve-test.sweet.home` (sandbox — Claude's default target)
-
-A separate Proxmox node set aside for testing. The *tooling's* default is
-still production (`PROXMOX_HOST` → `PVE1_HOST`, see above) — but
-**Claude's own default is this node**: absent an explicit, same-session
-instruction to use `pve1`, every Proxmox action Claude initiates targets
-`pve-test`. Once targeted, it's safe to create, interrogate, and destroy
-resources on without asking first.
-
-- **Test VMs/containers are allowed, but must be torn down.** Create a
-  scratch VM or container here (e.g. via
-  `scripts/proxmox/create-proxmox-resource.sh` or raw `qm`/`pct create`)
-  to validate something. Anything created this way must be destroyed
-  again in the same session, before ending the task — never leave a test
-  resource running. Use a VMID/name that's obviously scratch (and doesn't
-  collide with a real flake target) so it's unambiguous what's safe to
-  remove.
-- **Node-level config is still not yours to change.** Creating/destroying
-  your own scratch guests is fine; Proxmox host config, storage pools, and
-  networking on `pve-test` itself are still the operator's call to make
-  manually, same as on `pve1`.
 
 ## Commands
 
@@ -105,22 +29,11 @@ resources on without asking first.
 # One-time environment bootstrap (installs Nix if missing, prints hosts)
 bash scripts/codex-setup.sh
 
-# Changed-files-only validation: secret grep (whole repo), nixpkgs-fmt --check
+# Full validation: secret grep, nixpkgs-fmt --check, statix lint, eval all hosts
-# and statix on changed *.nix files, eval of the hosts/packages those changes
-# can affect. This is what CI runs on every push/PR.
 bash scripts/codex-maintenance.sh
 
-# Full sweep: nixpkgs-fmt --check/statix over the whole tree, eval every host
+# Same, plus a dry-run build (no result symlink) of every host's toplevel
-# and package. Slow (minutes) -- CI never runs this; use it locally before a
+bash scripts/codex-maintenance.sh dry-run
-# release or after touching modules/common/*, flake.nix, or variables.nix for
-# extra confidence beyond the automatic full-fallback those paths already
-# trigger in the default mode (see below).
-bash scripts/codex-maintenance.sh --full-check
-
-# Either mode, plus a dry-run build (no result symlink) of every host/package
-# in whichever scope is active
-bash scripts/codex-maintenance.sh --dry-run
-bash scripts/codex-maintenance.sh --full-check --dry-run
 
 # List the hosts the flake currently exposes
 nix eval --json .#nixosConfigurations --apply builtins.attrNames | jq -r '.[]'
@@ -137,197 +50,6 @@ maintenance script pulls them via `nix run github:NixOS/nixpkgs/nixos-25.11#<too
 There is no test suite — "correctness" here means the flake evaluates and
 `nixpkgs-fmt`/`statix` are clean.
 
-With no flags, `codex-maintenance.sh` diffs against a base ref (env
-`MAINT_BASE_SHA`, else the PR base SHA in CI, else `HEAD^` locally) and scopes
-fmt-check/statix to the changed `*.nix` files and eval to the hosts/packages
-those changes can affect — a `hosts/<name>/host.nix` edit only evals that
-host's targets, a `modules/platforms/<platform>.nix` edit only evals that
-platform's hosts, and so on. A change to `flake.nix`, `flake.lock`,
-`variables.nix`, `modules/common/*`, or any other `modules/*.nix` file outside
-`platforms/`/`build-types/` (whose blast radius isn't safely inferable from
-the path alone) falls back to evaluating every host and package, same as
-`--full-check` would, just without the whole-tree fmt/statix sweep. This
-exists because the whole-tree sweep is what was timing out CI; **CI always
-runs the plain, no-flag form and never passes `--full-check`.**
-
-The default mode's diff is against the working tree (uncommitted and staged
-edits included, not just committed ones), so it's already the right tool for
-an interactive session too: after editing one or two hosts/modules, plain
-`bash scripts/codex-maintenance.sh` naturally scopes to just what you
-touched. Reserve `--full-check` for changes that plausibly affect every host
-(`modules/common/*`, `flake.nix`, `variables.nix` — though the default mode
-already falls back to evaluating everything for those paths, `--full-check`
-additionally re-checks fmt/statix over the whole tree) or as a final check
-before committing.
-
-## Scripts
-
-Beyond `codex-setup.sh`/`codex-maintenance.sh` above, `scripts/` is
-organized by purpose: `scripts/secrets/` (sops/age + SSH host-key
-management), `scripts/proxmox/` (Proxmox deployment), `scripts/installer/`
-(the auto-installer's own shell script, templated into the image — see
-below), `scripts/lib/` (shared helpers, sourced by the scripts below — not
-run directly), and a handful of repo-wide scripts left at the top level
-(`env.sh`, `bump-nixpkgs-release.sh`, plus `codex-setup.sh`/
-`codex-maintenance.sh` above). When adding a new script, put it in the
-matching subfolder rather than the top level, and if it duplicates logic
-another script already has, lift the shared part into `scripts/lib/`
-instead of copying it.
-
-### `scripts/installer/`
-
-- `scripts/installer/auto-install.sh` — the interactive install script
-  baked into the auto-installer image (see `docs/auto-installer.md`), kept
-  as a real, version-controlled shell file rather than inline in
-  `modules/installer/common.nix`'s Nix. It sources `scripts/env.sh` itself
-  for `LAN_DOMAIN` (`export LAN_DOMAIN`/`: "${LAN_DOMAIN:=...}"`, matching
-  `variables.nix`'s `lanDomain` — manually kept in sync, same pattern as
-  `NIX_CACHE_HOST` mirroring `nixCacheHost`), rather than Nix-level string
-  substitution — that's what makes it work identically whether run
-  straight from a git checkout or from inside the built installer image.
-  `common.nix` bakes `scripts/env.sh` in alongside it at a matching
-  relative path (`/etc/nixos-installer/env.sh` next to
-  `/etc/nixos-installer/installer/auto-install.sh`) so the script's own
-  `source "$(dirname ...)/../env.sh"` line resolves the same way in both
-  contexts — this is also why it's invoked from
-  `/etc/nixos-installer/installer/auto-install.sh` rather than a flat
-  `/etc/auto-install.sh`. `#!/usr/bin/env bash`, not
-  `#!/run/current-system/sw/bin/bash`: the latter only resolves on an
-  already-activated NixOS system, breaking the checked-out-file case
-  entirely (confirmed live: "cannot execute: required file not found" on
-  a non-NixOS box); `/usr/bin/env` is reliably present on both NixOS
-  (`environment.usrbinenv`'s own default) and any normal Linux distro.
-
-### `scripts/secrets/`
-
-- `scripts/secrets/sync-host-keys.sh` — generates/registers SSH host keys
-  and their `.sops.yaml`/`secrets/*.yaml` recipients for flake targets,
-  idempotently (`--all`, `<target>`, `--remove`, `--regenerate-all-keys`,
-  all with `--dry-run`). The primary tool for provisioning a new host's
-  secrets access — see "Creating a new machine" in `docs/auto-installer.md`.
-- `scripts/secrets/prepare-host-key.sh` — narrower predecessor: generates a
-  key by an arbitrary name without touching `.sops.yaml`. Still useful to
-  pre-generate a key before its flake target exists yet, since
-  `sync-host-keys.sh` can only act on targets `nixosConfigurations` already
-  has.
-- `scripts/secrets/rotate-admin-key.sh <backup-admin-key> [--new-key-file
-  <path>] [--dry-run]` — rotates `.sops.yaml`'s `&admin` age key: decrypts
-  with a backed-up copy of the key currently trusted as `&admin` (verified
-  by deriving its public key and comparing, not taken on faith), replaces
-  the `&admin` line with a new key already present in the environment
-  (defaults to wherever sops/age itself would look), and runs
-  `sops updatekeys` on every `secrets/*.yaml`. One-way: the old key can no
-  longer decrypt anything re-encrypted this way. This is the automation
-  for the manual steps `sync-host-keys.sh`/`create-proxmox-resource.sh`
-  print when they bootstrap a brand-new, not-yet-trusted key on a machine
-  with no prior admin access.
-- `scripts/secrets/backup-admin-key.sh <dest-path> [--key-file <path>]
-  [--force] [--dry-run]` — copies the local sops age key (source
-  resolution matches sops/age itself: `$SOPS_AGE_KEY` inline, then
-  `--key-file`, then `$SOPS_AGE_KEY_FILE`, then the XDG default) to an
-  arbitrary destination path with `0600` permissions, validating it's a
-  real age identity and round-tripping the public key before and after the
-  write. Refuses to overwrite an existing `<dest-path>` without `--force`.
-  Purely a local filesystem copy — never touches `.sops.yaml`/
-  `secrets/*.yaml` or the repo at all. The resulting file is exactly what
-  `rotate-admin-key.sh` expects as its backup-key argument.
-- `scripts/secrets/sync-nix-cache-host-key.sh [--check] [--dry-run]
-  [--host <name>]` — detects drift between the ed25519 SSH host key
-  nix-cache is actually serving right now (via `ssh-keyscan`) and
-  `vars.nixCacheHostKey` (`variables.nix`), the value
-  `modules/nix-cache/remote-builder-client.nix` bakes into every real
-  client's declarative `programs.ssh.knownHosts` and
-  `configure-nix-cache-client.sh` hardcodes as its own default for
-  non-NixOS clients. That value has no automatic source of truth — it's
-  set once from whatever nix-cache's host key happened to be at the time,
-  and silently goes stale if the host is ever rebuilt/recreated with a new
-  key, breaking every client's distributed-build SSH trust with no error
-  that points back here. `--check` (used by `codex-maintenance.sh`, which
-  treats an unreachable nix-cache — e.g. from a non-LAN CI runner — as a
-  silent skip rather than a failure) only reports drift; the no-flags form
-  updates both files in place. Declarative clients still need a rebuild to
-  pick up the fix.
-
-### `scripts/proxmox/`
-
-- `scripts/proxmox/create-proxmox-resource.sh` — builds a `lxc-*`/
-  `proxmox-*` target's tarball/disk image and creates it on a real Proxmox
-  node (`pct create` against the tarball as a CT template / `qm create`+
-  `importdisk`), or reconfigures an existing resource's cores/memory/disk
-  size (`--modify`, always requires typing the VMID back to confirm).
-  Checks for an already-uploaded image on the node before building
-  (`--force-rebuild` to skip that and always rebuild), and probes
-  nix-cache's substituter/remote-builder reachability once up front rather
-  than letting every `nix build` call retry against it individually.
-  Refuses to create a target whose host identity already exists live on
-  the node (checked directly via `qm`/`pct`, not any file in this repo)
-  unless `--allow-duplicate-host` is passed. `--dry-run` throughout both
-  modes. The first time it has to bootstrap build tooling on a node (i.e.
-  `nix` wasn't already on its `PATH`), it also runs
-  `scripts/proxmox/configure-nix-cache-client.sh` there (non-fatally — a
-  failure just falls back to building from source / `cache.nixos.org`) so
-  the node substitutes from and can offload builds to nix-cache on every
-  subsequent run, not just this one.
-- `scripts/proxmox/configure-nix-cache-client.sh [--dry-run]
-  [--no-remote-builder] [--no-restart]` — the non-NixOS equivalent of
-  `modules/nix-cache/client.nix`/`remote-builder-client.nix`, for a plain
-  Debian machine with the Nix package manager (not NixOS) already
-  installed: run as root *on that machine* to add nix-cache as a
-  substituter in `/etc/nix/nix.conf` (`https://cache.nixos.org/` kept as
-  fallback) via `extra-substituters`/`extra-trusted-public-keys` so it
-  layers on top of whatever's already there instead of clobbering it, and,
-  if `/root/.ssh/nixremote` is already present (see docs/nix-cache.md
-  "Remote builder SSH keys"), configures it as a distributed-build
-  machine too and trusts nix-cache's SSH host key in
-  `/etc/ssh/ssh_known_hosts`. Idempotent (re-running replaces its own
-  marked block rather than duplicating it); restarts `nix-daemon` by
-  default so the change takes effect immediately.
-
-### `scripts/lib/`
-
-Sourced by the scripts above, never run directly:
-
-- `nix-bootstrap.sh` — `NIX_CONFIG`/`ensure_nix_profile`, shared by
-  `codex-setup.sh`/`codex-maintenance.sh` and the remote build commands
-  `create-proxmox-resource.sh` runs over SSH.
-- `nix-eval.sh` — `NIX_EVAL_FLAGS` plus `list_flake_targets`/
-  `flake_target_hostname` flake-introspection helpers.
-- `ssh-host-keys.sh` — `generate_host_ed25519_key`/`ssh_pubkey_to_age`,
-  shared by `sync-host-keys.sh` and `prepare-host-key.sh`.
-- `sops-age.sh` — `age_pubkey_from_identity_file`/`sops_yaml_admin_pubkey`/
-  `sops_updatekeys` plus the shared sops/age default key-file resolution,
-  shared by `backup-admin-key.sh`, `rotate-admin-key.sh`, and
-  `sync-host-keys.sh`.
-- `confirm.sh` — `confirm_typed`, the "type X back to confirm" destructive-
-  action prompt shared by `create-proxmox-resource.sh` and
-  `sync-host-keys.sh`.
-- `sync-host-keys-edit-sops.py` — the `.sops.yaml` anchor/key_groups editor
-  `sync-host-keys.sh` shells out to (see that script for why: precise,
-  idempotent YAML edits are impractical in bash).
-
-### Top level
-
-- `scripts/env.sh` — shared config (`PROXMOX_HOST`, storage pool, bridge,
-  default cores/memory, `NIX_CACHE_HOST`, `LAN_DOMAIN`) sourced by
-  `create-proxmox-resource.sh` and `scripts/installer/auto-install.sh`. Add
-  new cross-script config here instead of duplicating it per-script.
-- `scripts/bump-nixpkgs-release.sh` — bumps `flake.nix`'s `nixpkgs.url`/
-  `home-manager.url` in place. Exists because flake input URLs can't
-  reference `variables.nix` (confirmed empirically — `nix flake metadata`
-  errors on it), so this is the closest equivalent to a single source of
-  truth for the tracked release.
-
-`sync-host-keys.sh`, `create-proxmox-resource.sh`, and
-`rotate-admin-key.sh` genuinely mutate real state when run for real (not
-`--dry-run`): real `secrets/*.yaml` recipients, real Proxmox VMs/
-containers, real revocation of decrypt access. They require the
-operator's own SSH/sops access, which an agent session doesn't have — but
-don't suggest running any of them non-dry-run without the operator's
-explicit go-ahead even if it becomes technically reachable.
-`backup-admin-key.sh` only writes a key copy to a path the operator gives
-it — lower-stakes than the others, but it still handles a real private
-key, so treat its destination path choice as the operator's call too.
-
 ## Architecture
 
 `flake.nix` is the single entry point. It generates one
@@ -348,15 +70,10 @@ nixosSystem {
 }
 ```
 
-Platforms: `linode`, `proxmox`, `lxc`, `baremetal`. Build types: `minimal`,
+Platforms: `linode`, `proxmox`, `lxc`. Build types: `minimal`, `nix-cache`,
-`nix-cache`, `server`, `docker`, `gui`, `pxe-boot`, `tailscale-exit-node`,
+`server`, `docker`, `gui`, `pxe-boot`. Not every combination is built — e.g.
-`tor-relay`. Not every combination is built — e.g. `pxe-boot` has no `linode`
+`pxe-boot` has no `linode` variant (PXE/DHCP/TFTP need LAN L2 adjacency a
-variant (PXE/DHCP/TFTP need LAN L2 adjacency a Linode VPS doesn't have),
+Linode VPS doesn't have). Treat `flake.nix`'s `generatedTargets` as the source
-`tor-relay` currently only exists as `lxc-tor-relay`, and `baremetal`
-currently only exists as `baremetal-gui` (the real gui-host hardware —
-see `hosts/nixos/host.nix` and `modules/platforms/baremetal.nix`). Treat
-`flake.nix`'s
-`generatedTargets` as the source
 of truth for which hosts exist — `README.md`, `AGENTS.md`,
 `docs/flake-lock-automation.md`, and the CI eval workflows
 (`.github/workflows/check-nixos.yml`, `.gitea/workflows/check-nixos.yml`) list
@@ -371,58 +88,22 @@ removing a host.
   of their own beyond narrow parameterized helpers (see
   `modules/beszel/host-token.nix` below) — all shared behavior comes from the
   platform/build-type modules composed in `flake.nix`, not from the host file.
-- `modules/platforms/{linode,proxmox,lxc,baremetal}.nix` — platform-specific
+- `modules/platforms/{linode,proxmox,lxc}.nix` — platform-specific config:
-  config: boot method, guest tooling, and the hardware config, imported
+  boot method, guest tooling, and (for linode/proxmox) the hypervisor-specific
-  directly by the platform module itself — **not** wired in from
+  hardware config, imported directly by the platform module itself
-  `flake.nix`. VM platforms use `../hardware-configuration/vm/{proxmox,linode}.nix`;
+  (`../hardware-configuration/vm/{proxmox,linode}.nix`) — **not** wired in
-  `baremetal.nix` uses `../hardware-configuration/baremetal.nix` (adapted
+  from `flake.nix`. `lxc.nix` has no hardware-configuration counterpart since
-  from a real `nixos-generate-config` run on the actual hardware, not a
+  containers share the host kernel.
-  vm/ file, since it isn't a VM) plus `hardware.enableRedistributableFirmware
-  = true` for real wifi/GPU/microcode firmware that VMs never needed.
-  `lxc.nix` has no hardware-configuration counterpart since containers
-  share the host kernel; instead it imports nixpkgs' own
-  `virtualisation/proxmox-lxc.nix`, which gives every `lxc-*` host a
-  `config.system.build.tarball` output — a plain rootfs tarball, used as a
-  `pct create ... vztmpl` CT template (**not** `pct restore`, which expects
-  `vzdump` backup-archive metadata this doesn't have), no install step —
-  see `docs/auto-installer.md`.
 - `modules/build-types/*.nix` — what a system is for:
-  minimal/server/docker/gui/pxe-boot/nix-cache/tailscale-exit-node/tor-relay.
+  minimal/server/docker/gui/pxe-boot/nix-cache.
 - `modules/common/configuration.nix` — base NixOS config imported by every
   host: locale, users, nix settings, git.
 - `modules/common/home.nix` / `hosts/nixos/home.nix` — Home Manager config for
   the `nixos` user; the `nixos` workstation (`gui` build type) has its own,
   other hosts share `modules/common/home.nix`.
 - `modules/disko/proxmox.nix` — declarative disk layout (GPT: ESP + swap +
-  ext4 root) via disko, used by all Proxmox-VM hosts (`proxmox-*`, not
+  ext4 root) via disko, used by all Proxmox-VM hosts.
-  `lxc-*`). Also carries `imageSize`/`imageName`, letting every `proxmox-*`
-  host be built as a standalone, `qm importdisk`-ready `.raw` image with no
-  install step — see `docs/proxmox-images.md`.
-- `modules/disko/linode.nix` — `linode-*`'s disko config, deliberately
-  different in kind from the Proxmox one: Linode provisions and sizes
-  `/dev/sda`/`/dev/sdb` itself as whole, unpartitioned devices before the OS
-  boots, so this declares them with `destroy = false` (disko never wipes
-  them) and a bare `filesystem`/`swap` content type instead of a partition
-  table — idempotent against an already-provisioned disk, never destructive.
-- `modules/disko/baremetal.nix` — `baremetal-gui`'s disko config: a ZFS
-  RAID0 (striped, no redundancy — disko's zpool `mode` defaults to `""`,
-  which is a plain stripe rather than `"mirror"`/`"raidz"`) root pool
-  across two disks, ESP + systemd-boot on the first. Device paths
-  (`vars.guiRootDisk1`/`guiRootDisk2`) are placeholders — fill in stable
-  `/dev/disk/by-id/...` paths before running disko for real.
-  `modules/platforms/baremetal.nix` also imports
-  `modules/services/zfs/enable-service.nix` for this (the `zfs_unstable`
-  package, autoScrub/autoSnapshot/trim) — the only other importer today is
-  `server`'s NFS data pool, an unrelated non-root ZFS use.
 - `modules/boot/efi.nix` — systemd-boot + EFI vars, paired with the disko module.
-- `modules/installer/` — the auto-installer environment (ISO, also served as
-  PXE netboot): `common.nix` (shared config + the generated
-  `auto-install.sh`), `iso.nix`, `host-keys.nix` (optionally bakes
-  `host-keys/` into the image under `--impure`). See
-  `docs/auto-installer.md`.
-- `modules/pxe-boot/stage-installer-artifacts.nix` — builds the installer's
-  netboot image and stages it on the `pxe-boot` host so its iPXE menu can
-  chain straight to it. See `docs/pxe-boot.md`.
 - `modules/nix-cache/{client,server,remote-builder-client}.nix` — binary cache
   substituter + SSH remote-builder wiring; see `docs/nix-cache.md` for the
   full design (per-host local stores, no shared `/nix/store`, and how the
@@ -432,8 +113,7 @@ removing a host.
   and `environmentFile`; used by `hosts/server/host.nix` and
   `hosts/nix-cache/host.nix` to avoid duplicating that boilerplate.
 - `modules/tailscale/`, `modules/docker/`, `modules/networking/`,
-  `modules/traefik/`, `modules/tor/`, `modules/services/*` — single-purpose,
+  `modules/traefik/`, `modules/services/*` — single-purpose, single-host
-  single-host
   feature modules (e.g. `docker/enable-service.nix`,
   `services/zfs/enable-service.nix`). Grep `modules/build-types/*.nix` for
   each build type's `imports` list to see which modules apply where.
@@ -449,12 +129,6 @@ duplicating config.
   handling.
 - `docs/pxe-boot.md` — the `pxe-boot` host's iPXE/TFTP/HTTP boot chain and
   directory layout under `/srv/pxe`.
-- `docs/auto-installer.md` — the installer environment (ISO/netboot/Proxmox
-  LXC), `host-keys/` and the sops-nix pre-seeding problem it solves, and why
-  `lxc-*` hosts are deliberately excluded from its menu.
-- `docs/proxmox-images.md` — building `proxmox-*` hosts as standalone `.raw`
-  disk images (disko's image builder) instead of installing, and deploying
-  the result to Proxmox.
 - `docs/flake-lock-automation.md` — how `flake.lock` updates flow through CI
   (scheduled `nix flake update` PR + host-eval-on-PR workflow) and why hosts
   should track the committed lock file rather than `nixos-rebuild --upgrade-all`.

README.md

@@ -8,42 +8,24 @@ workstation.
 Targets are named `<platform>-<buildtype>`, generated from two orthogonal
 pieces composed in `flake.nix`:
 
-- **Platforms** (what it runs on): `linode`, `proxmox`, `lxc`, `baremetal`
+- **Platforms** (what it runs on): `linode`, `proxmox`, `lxc`
 - **Build types** (what it's for): `minimal`, `nix-cache`, `server`, `docker`,
-  `gui`, `pxe-boot`, `tailscale-exit-node`, `tor-relay`
+  `gui`, `pxe-boot`
 
 Not every combination exists — `pxe-boot` has no `linode` variant, since
-PXE/DHCP/TFTP need LAN L2 adjacency that a Linode VPS doesn't have,
+PXE/DHCP/TFTP need LAN L2 adjacency that a Linode VPS doesn't have. The full
-`tor-relay` currently only exists as `lxc-tor-relay`, and `baremetal`
+list:
-currently only exists as `baremetal-gui` (the real gui-host hardware). The
-full list:
 
 | Target | Purpose |
 | --- | --- |
-| `linode-minimal` | Minimal NixOS host profile on a Linode VPS |
+| `linode-minimal` | Minimal NixOS host profile on a Linode VPS (real, deployed) |
-| `proxmox-minimal` | Minimal NixOS host profile on Proxmox — previously the flat `nix-minimal` target |
+| `proxmox-minimal` | Minimal NixOS host profile on Proxmox (real, deployed — previously the flat `nix-minimal` target) |
 | `lxc-minimal` | Minimal NixOS host profile in a Proxmox LXC container |
-| `linode-nix-cache` / `proxmox-nix-cache` / `lxc-nix-cache` | Local Nix binary cache and remote builder — previously the flat `nix-cache` target |
+| `linode-nix-cache` / `proxmox-nix-cache` / `lxc-nix-cache` | Local Nix binary cache and remote builder (`proxmox-nix-cache` is the real, deployed one — previously the flat `nix-cache` target) |
-| `linode-server` / `proxmox-server` / `lxc-server` | Storage, NFS, backup, and monitoring exporter host — previously the flat `server` target |
+| `linode-server` / `proxmox-server` / `lxc-server` | Storage, NFS, backup, and monitoring exporter host (`proxmox-server` is the real, deployed one — previously the flat `server` target) |
-| `linode-docker` / `proxmox-docker` / `lxc-docker` | Docker host for the main container stack — previously the flat `docker` target |
+| `linode-docker` / `proxmox-docker` / `lxc-docker` | Docker host for the main container stack (`proxmox-docker` is the real, deployed one — previously the flat `docker` target) |
-| `linode-gui` / `proxmox-gui` / `lxc-gui` | Cinnamon desktop workstation — previously the flat `nixos` target |
+| `linode-gui` / `proxmox-gui` / `lxc-gui` | Cinnamon desktop workstation (`proxmox-gui` is the real, deployed one — previously the flat `nixos` target) |
-| `baremetal-gui` | Same Cinnamon desktop workstation, on the real gui-host hardware — ZFS RAID0 root, systemd-boot |
+| `proxmox-pxe-boot` / `lxc-pxe-boot` | HTTP/iPXE boot asset host (`proxmox-pxe-boot` is the real, deployed one — previously the flat `pxe-boot` target) |
-| `proxmox-pxe-boot` / `lxc-pxe-boot` | HTTP/iPXE boot asset host — previously the flat `pxe-boot` target |
-| `linode-tailscale-exit-node` / `proxmox-tailscale-exit-node` / `lxc-tailscale-exit-node` | Tailscale exit node |
-| `lxc-tor-relay` | Tor middle relay |
-
-Which variant of a given buildtype is actually deployed isn't tracked
-anywhere in this repo — that's live infrastructure state, not something a
-committed file can keep accurate, and it changes independently of the code.
-Check the Proxmox node itself, or `/etc/flake-target` on a running host (see
-below), if you need to know what's really out there right now.
-`scripts/proxmox/create-proxmox-resource.sh`'s duplicate-host guard works the same
-way: it checks the Proxmox node directly rather than any file here.
-Real, production deployments live on `pve1.sweet.home`; there's a second
-node, `pve-test.sweet.home`, set aside purely for scratch/test resources —
-see `scripts/env.sh` (`PVE1_HOST` / `PVE_TEST_HOST`, and the
-`--node`/`PROXMOX_HOST` targeting they feed into) and CLAUDE.md's Proxmox
-section for which is which.
 
 Each buildtype's `hosts/<name>/host.nix` carries the per-machine identity
 (hostname, hostId, per-machine secrets, `system.stateVersion`) that must stay
@@ -64,17 +46,17 @@ nix eval --json .#nixosConfigurations --apply builtins.attrNames | jq -r '.[]'
 | Path | Purpose |
 | --- | --- |
 | `flake.nix` | Flake inputs, the `mkTarget` platform × build-type generator, and `nixosConfigurations` outputs |
-| `variables.nix` | Single source of truth for shared values (LAN domain/CIDR, hostnames, timezone, primary username, storage root, NFS share subpaths/mountpoints, service ports, ...) — passed to every module and Home Manager config as the `vars` argument via `specialArgs`/`extraSpecialArgs` |
+| `variables.nix` | Single source of truth for shared values (LAN domain/CIDR, hostnames, timezone, primary username, storage root, ...) — passed to every module and Home Manager config as the `vars` argument via `specialArgs`/`extraSpecialArgs` |
 | `hosts/<name>/host.nix` | Per-machine identity: hostname, hostId, per-machine secrets, `system.stateVersion` |
 | `hosts/nixos/home.nix` | Workstation-specific Home Manager config (used by the `gui` build type) |
-| `modules/platforms/` | Platform-specific config: virtualisation guest tools, boot method, hardware config (`linode.nix`, `proxmox.nix`, `lxc.nix`, `baremetal.nix`) |
+| `modules/platforms/` | Platform-specific config: virtualisation guest tools, boot method, hardware config (`linode.nix`, `proxmox.nix`, `lxc.nix`) |
 | `modules/build-types/` | Build-type-specific config: what makes a system minimal/server/docker/gui/pxe-boot/nix-cache |
 | `modules/common/` | Shared NixOS config, Home Manager, aliases imported by every host |
 | `modules/nix-cache/` | Binary cache and remote builder client/server modules |
-| `modules/installer/` | Auto-installer environment (ISO, also served as PXE netboot) — see `docs/auto-installer.md` |
+| `modules/installer/` | Auto-installer environment (ISO/netboot/Proxmox LXC) — see `docs/auto-installer.md` |
 | `host-keys/` | Gitignored, locally-generated SSH host keys for the auto-installer — see `docs/auto-installer.md` |
-| `docs/` | Operational notes for cache, builders, lock updates, boot services, the auto-installer, and Proxmox image builds |
+| `docs/` | Operational notes for cache, builders, lock updates, boot services, and the auto-installer |
-| `scripts/` | Codex setup, validation, host-key, release-bump, and Proxmox resource helpers |
+| `scripts/` | Codex setup, validation, and host-key-prep helpers |
 
 ## Validation
 
@@ -82,19 +64,10 @@ Safe validation commands for Codex and local review:
 
 ```bash
 bash scripts/codex-setup.sh
+bash scripts/codex-maintenance.sh dry-run
 bash scripts/codex-maintenance.sh
 ```
 
-`codex-maintenance.sh` with no flags (what CI runs on every push/PR) scopes
-fmt-check/statix/eval to files changed against a base ref — fast, but only
-as thorough as the diff. For the full sweep (every host, every package,
-fmt-check and statix over the whole tree — slow, CI never runs this):
-
-```bash
-bash scripts/codex-maintenance.sh --full-check
-bash scripts/codex-maintenance.sh --full-check --dry-run
-```
-
 For individual host evaluation:
 
 ```bash
@@ -114,29 +87,6 @@ review sessions.
   client hosts.
 - `pxe-boot` serves iPXE boot files over HTTP from `/srv/pxe`.
 
-### Deploying a new host
-
-Three different paths depending on target, none of them involving a manual
-`nixos-rebuild switch` from this repo:
-
-- Most hosts: boot the auto-installer, pick the target from its menu — see
-  `docs/auto-installer.md`. Every menu target has a Disko config the
-  installer formats unconditionally (`docs/auto-installer.md`'s "Storage"
-  section covers how this stays non-destructive for `linode-*`, whose disks
-  Linode itself provisions ahead of time).
-- `lxc-*` targets: not installed at all — build a ready-to-run container
-  tarball and `pct create` it as a CT template directly. `docs/auto-installer.md`
-  covers why (and the installer's menu excludes them for the same reason).
-- `proxmox-*` targets: can alternatively be built as a standalone `.raw`
-  disk image and attached to a new VM with no install step — see
-  `docs/proxmox-images.md`.
-
-`scripts/proxmox/create-proxmox-resource.sh --type lxc|vm --host <name>` automates
-either of the last two end to end (host-key registration, building the
-image directly on the Proxmox node itself, `pct create`/`qm create`), with
-`--dry-run` and a guard against duplicating an already-deployed host's
-identity. See its `--help`.
-
 ## Security Notes
 
 Do not commit tokens, private keys, live credentials, or new password hashes
@@ -157,13 +107,6 @@ enabled via `git config core.hooksPath .githooks`, done automatically by
 `scripts/codex-setup.sh`) runs `gitleaks protect --staged` to catch mistakes
 before they're committed.
 
-The auto-installer environment is the one deliberate exception to
-sops-nix-everywhere: it has a hardcoded login password instead (no stable
-per-boot host key for sops-nix to derive from on ephemeral media) — see
-"Host keys" in `docs/auto-installer.md` for why, and how the private keys it
-*does* pre-seed for target hosts stay out of git via the gitignored
-`host-keys/` directory.
-
 This repository's git *history* still contains secrets committed before this
 migration (see `remove-sensetive-info-refactor.md`) — those are being
 scrubbed and rotated separately; don't treat the repo as safe to make public

docs/auto-installer.md

@@ -5,16 +5,12 @@ install any host exposed by its own `nixosConfigurations`. It was migrated
 from a formerly-separate `nix-auto-installer` repo — everything it did now
 lives here.
 
-The installer provides a small NixOS install environment (ISO, or the same
+The installer provides a small NixOS install environment (ISO/netboot/Proxmox
-image netbooted via PXE) with SSH access, Git support, and an interactive
+LXC) with SSH access, Git support, and an interactive installation script.
-installation script.
+Logging in as any user (root or `nixos`) runs `/etc/auto-install.sh`,
-Logging in as any user (root or `nixos`) runs
+discovers available hosts from this same flake, lets the operator choose a
-`/etc/nixos-installer/installer/auto-install.sh` (the same file as
+target, applies that host's Disko storage configuration, installs NixOS, and
-`scripts/installer/auto-install.sh` in this repo — see "Installer process"
+reboots.
-below for why it's baked in at that path rather than a flat
-`/etc/auto-install.sh`), discovers available hosts from this same flake,
-lets the operator choose a target, applies that host's Disko storage
-configuration, installs NixOS, and reboots.
 
 **This applies to every `nixosConfigurations` target except `lxc-*` hosts —
 see "LXC hosts" immediately below for why those are different.**
@@ -22,7 +18,7 @@ see "LXC hosts" immediately below for why those are different.**
 ## LXC hosts
 
 `lxc-*` targets (`lxc-minimal`, `lxc-nix-cache`, `lxc-server`, `lxc-docker`,
-`lxc-gui`, `lxc-pxe-boot`, `lxc-tailscale-exit-node`, `lxc-tor-relay`) are **not** installed via `auto-install.sh` — the
+`lxc-gui`, `lxc-pxe-boot`) are **not** installed via `auto-install.sh` — the
 interactive menu deliberately excludes them. Don't try to select one there;
 `nixos-install` would bind-mount `/` onto `/mnt` (LXC containers have no raw
 disk to partition) and then refuse to touch the filesystem it's currently
@@ -37,76 +33,16 @@ container image, no install step at all:
 nix build .#nixosConfigurations.lxc-minimal.config.system.build.tarball
 ```
 
-This is a plain rootfs tarball, not a `vzdump` backup archive — restoring it
+Then, on the Proxmox host, `pct restore` (or the GUI's "Create CT" → upload
-with `pct restore` fails ("archive contains no configuration file"), since
+template flow) that tarball directly as a new container. First boot runs
-that command expects backup-archive metadata this tarball doesn't have. Use
+`boot.postBootCommands` (registers the Nix store DB and system profile) —
-it as a CT *template* instead: drop it under Proxmox's template storage
+there's no separate activation step to run yourself.
-(conventionally `/var/lib/vz/template/cache/` for the `local` storage, or
-the GUI's "Create CT" → upload-as-template flow) and create a container
-from it, supplying all config on the command line since a template has none
-of its own:
 
-```sh
+Host keys still need pre-seeding the same way as any other host (see "Host
-pct create <vmid> local:vztmpl/<file>.tar.xz \
+keys" below) — the sops-nix activation-vs-first-boot race is identical
-  --unprivileged 1 --features nesting=1,keyctl=1 \
+regardless of how the image reaches the machine. `NIXOS_HOST_KEYS_DIR=...
-  --rootfs local-lvm:8 --hostname <name> --cores 2 --memory 2048 --swap 2048 \
+nix build ... --impure` bakes the matching key into the tarball the same way
-  --net0 name=eth0,bridge=vmbr0,ip=dhcp
+it does for the ISO/PXE installer images.
-pct start <vmid>
-```
-
-Every one of those extra flags is load-bearing, confirmed by actually
-booting one:
-
-- `--unprivileged 1` — `modules/platforms/lxc.nix` sets
-  `proxmoxLXC.privileged = false`, so the image assumes it's running
-  unprivileged. `pct create`'s own CLI default for this flag is
-  privileged (unlike the web UI, whose checkbox defaults the other way)
-  — omit it and you get a privileged container running a NixOS config
-  that assumes unprivileged, a real mismatch.
-- `--features nesting=1,keyctl=1` — required for a modern (v247+)
-  systemd guest to boot unprivileged at all. Without it, AppArmor denies
-  the nested user namespaces and credential mounts systemd routinely
-  uses (even plain getty units) — every getty crash-loops on a denied
-  `/run/credentials/*` mount every ~3s (this is what garbage on the
-  console turns out to be) while core services like `nsncd` fail the
-  same way, and the system never finishes activating.
-- `--swap 2048` — `--memory` doesn't touch swap; it silently stays at
-  Proxmox's own 512M default otherwise. Match it to `--memory` unless
-  you deliberately want otherwise.
-
-First boot runs `boot.postBootCommands` (registers the Nix store DB and
-system profile) — there's no separate activation step to run yourself.
-`scripts/proxmox/create-proxmox-resource.sh --type lxc --host <name>` automates all
-of this (host-key handling, building the tarball directly on the Proxmox
-node itself, `pct create` with the flags above) — see its `--help`.
-
-Host keys still need pre-seeding the same way as any other host — the
-sops-nix activation-vs-first-boot race is identical regardless of how the
-image reaches the machine. Unlike the ISO/PXE installer (where
-`modules/installer/host-keys.nix` bakes *every* `host-keys/` entry into
-`/etc/host-keys/` for `auto-install.sh` to pick from and copy at install
-time — see "Host keys" below), an `lxc-*` tarball has no install step to
-copy anything during, so `modules/platforms/lxc.nix` bakes this *one*
-target's key straight into `/etc/ssh/ssh_host_ed25519_key(.pub)` directly,
-keyed by its own exact flake target name (`config.environment.etc` can't
-be read back from within a module still contributing to it, so this comes
-in via `specialArgs.flakeTarget`, set by `flake.nix`'s `mkTarget`):
-
-```sh
-NIXOS_HOST_KEYS_DIR="$(pwd)/host-keys" \
-  nix build .#nixosConfigurations.lxc-nix-cache.config.system.build.tarball --impure
-```
-
-Confirmed the hard way: without this, the tarball's own built-in system
-just generates a fresh host key at first boot like any host would, which
-can never match whatever `.sops.yaml` actually trusts for that target —
-`sops-install-secrets` fails with `Error getting data key: 0 successful
-groups required, got 0`, and *every* secret (including this host's own
-login) permanently fails to decrypt, silently — no error in the boot log
-at all, since the activation step that would install secrets only runs on
-a from-scratch first activation and skips silently once `/run/current-system`
-already exists. `scripts/proxmox/create-proxmox-resource.sh` always builds with
-`NIXOS_HOST_KEYS_DIR` set for this reason.
 
 ## Layout
 
@@ -117,47 +53,35 @@ already exists. `scripts/proxmox/create-proxmox-resource.sh` always builds with
   `installation-cd-minimal.nix` module plus `common.nix`. Also used, paired
   with `netboot-minimal.nix`, to build the PXE netboot variant (see
   `docs/pxe-boot.md`).
+- `modules/installer/proxmox-lxc.nix` — Proxmox LXC-specific: disables
+  bootloader options (containers don't need one) plus `common.nix`.
 - `modules/installer/host-keys.nix` — optionally bakes pre-generated SSH
   host keys into the image; see "Host keys" below.
-- `scripts/secrets/sync-host-keys.sh` — admin-workstation tool that generates,
+- `scripts/prepare-host-key.sh` — admin-workstation pre-flight tool, see
-  registers, and (via `--remove`/`--regenerate-all-keys`) retires host
+  "Creating a New Machine" below.
-  keys; see "Creating a New Machine" below.
-- `scripts/secrets/prepare-host-key.sh` — narrower predecessor: generates a single
-  key by an arbitrary name without touching `.sops.yaml`. Still useful for
-  pre-generating a key *before* its flake target exists (`sync-host-keys.sh`
-  can only act on targets `nixosConfigurations` already has); otherwise
-  `sync-host-keys.sh` does the same thing and more.
 
 Flake outputs:
 
 ```nix
-nixosConfigurations.installer   # ISO/netboot installer image
+nixosConfigurations.installer     # ISO/netboot installer image
+nixosConfigurations.proxmox-lxc   # Proxmox LXC-based installer image
 
 packages.x86_64-linux.iso   # installer ISO/netboot image
+packages.x86_64-linux.lxc   # Proxmox LXC installer tarball
 packages.x86_64-linux.pxe   # netboot-ipxe + netboot-initrd + netboot-kernel, bundled
+packages.x86_64-linux.all   # all three of the above, bundled
 ```
 
 ```sh
 nix build .#iso
+nix build .#lxc
 nix build .#pxe
+nix build .#all
 ```
 
-There's no `nixosConfigurations.proxmox-lxc` (installer-boots-as-an-LXC-
-container) or `packages.x86_64-linux.lxc`/`.all` anymore. Both existed only
-to let the installer itself run as an LXC container so you could
-`nixos-install` some *other* host from within it — but LXC targets are
-excluded from the install menu (same bind-mount problem as any LXC
-`nixos-install`), and now have their own direct tarball path anyway (see
-"LXC hosts" above), which left the installer's own LXC form with no real
-use case.
-
 The `pxe` variant is also built automatically as part of the `pxe-boot` host
 itself (`modules/pxe-boot/stage-installer-artifacts.nix`) and served over
-iPXE as the menu's "NixOS Auto-Installer" entry — see `docs/pxe-boot.md`.
+iPXE — see `docs/pxe-boot.md`.
-That same host also builds and serves `packages.x86_64-linux.pxe-minimal`,
-a vanilla NixOS minimal netboot image with none of this auto-installer's
-wiring, as a separate "NixOS Minimal" menu entry — also documented in
-`docs/pxe-boot.md`, not covered further here since it's not this installer.
 
 ## Host keys
 
@@ -195,55 +119,23 @@ default.
 `auto-install.sh` still supports the older manual path as a fallback: if a
 host's key isn't baked in (`/etc/host-keys`), it checks `/root/host-keys`
 next, where you can `scp` a key in after boot, same as before this migration.
-If neither has it and the script is running interactively (an actual
-operator at the other end of stdin, not an unattended run), it prompts for
-an arbitrary directory to check (a mounted USB stick, another filesystem,
-etc.) and copies the key pair into `/root/host-keys` from there if found.
 
 ## Storage
 
 Disk partitioning is handled by Disko — the installer has no hardcoded
-`parted`/`mkfs`/`mkswap`/`mount` commands, and `auto-install.sh` runs
+`parted`/`mkfs`/`mkswap`/`mount` commands. Each host defines its own layout
-`disko --mode destroy,format,mount` unconditionally, no branching on whether
+via `disko.devices`; a host without one is installed in place via bind-mount
-the target has a Disko config. Every host reachable through this menu has
+(this is how every LXC container target works, since they have no raw block
-one:
+device to partition).
-
-- `proxmox-*` (`modules/disko/proxmox.nix`): a real GPT partition table
-  (ESP + swap + root) on `/dev/sda`.
-- `linode-*` (`modules/disko/linode.nix`): Linode provisions and sizes
-  `/dev/sda`/`/dev/sdb` itself as whole, unpartitioned block devices before
-  the OS ever boots, so this declares them with `destroy = false` (skips
-  disko's wipe stage for these disks entirely — see the option's own docs)
-  and a bare `filesystem`/`swap` content type with no partition table, and
-  the format step it does run only calls `mkfs`/`mkswap` if `blkid` shows
-  the device isn't already formatted — a re-run against an
-  already-provisioned Linode disk is a no-op, not a wipe.
-
-`lxc-*` is the only category without one — it's excluded from this menu
-entirely (see "LXC hosts" above), so it never reaches this code path.
 
 ## Installer process
 
-`scripts/installer/auto-install.sh` is a real, version-controlled shell
+`/etc/auto-install.sh`:
-script — not an inline Nix string. It sources `scripts/env.sh` for
-`LAN_DOMAIN` itself (same as every other script in `scripts/`), so it
-behaves identically whether it's run straight from a git checkout (e.g.
-manually, from a stock NixOS ISO that isn't this repo's own installer
-image) or from inside the built installer image. That's also why it's
-baked in at `/etc/nixos-installer/installer/auto-install.sh` rather than a
-flat `/etc/auto-install.sh` — `modules/installer/common.nix` bakes
-`scripts/env.sh` in alongside it at `/etc/nixos-installer/env.sh`,
-preserving the same relative layout (`installer/auto-install.sh` ->
-`../env.sh`) the checked-out repo has, so the script's own
-`source ".../env.sh"` line resolves correctly in both places without any
-Nix-level templating.
-
-Once running, it:
 
 1. Queries `nixosConfigurations` from this flake over the network (`git+https://<lanDomain>/beatzaplenty/nixos.git`) — this happens at *install* time, not build time, so a generic installer image always sees whatever hosts are currently committed, without needing a rebuild.
 2. Presents them as a menu; confirms the choice.
 3. Skips the `nix-cache` substituter when installing a `nix-cache` host itself (consistent with that host's own runtime config).
-4. Runs `disko --mode destroy,format,mount` (see "Storage" above — every host reachable through this menu has a Disko config, so this is unconditional).
+4. Runs `disko --mode destroy,format,mount` if the target has a Disko config, otherwise bind-mounts `/` onto `/mnt`.
 5. Installs the target's SSH host key from `/etc/host-keys` or `/root/host-keys` (see "Host keys" above).
 6. Runs `nixos-install --flake <url>#<choice> --no-root-password`.
 7. Cleans up and reboots.
@@ -255,28 +147,24 @@ host consumes any sops-nix secret — as of this writing, that's every host
 (`modules/common/configuration.nix` puts the root/nixos password hash and the
 GitHub token behind sops-nix for all of them).
 
-1. **Add the flake target** — `hosts/<name>/host.nix` plus the matching
+1. **On your admin workstation**, decide the new machine's flake target name
-   `mkTarget { ... }` entry in `flake.nix`'s `generatedTargets` (see
+   (`<platform>-<buildtype>`, e.g. `proxmox-server`) and generate + register
-   "Composition pattern" in `CLAUDE.md`). No secrets involved yet, so this
+   its host key:
-   is safe to commit on its own if you want a clean history.
-
-2. **On your admin workstation, generate and register its host key:**
 
    ```sh
-   ./scripts/secrets/sync-host-keys.sh <flake-target>
+   ./scripts/prepare-host-key.sh <hostname>
    ```
 
-   This generates `host-keys/<flake-target>_ssh_host_ed25519_key(.pub)`,
+   This generates `host-keys/<hostname>_ssh_host_ed25519_key(.pub)` and
-   adds it as a new `.sops.yaml` anchor, works out which `secrets/*.yaml`
+   prints the `.sops.yaml` snippet to add, which secrets files to
-   files this specific host actually references (from its own
+   re-encrypt it into, and the next steps below.
-   `config.sops.secrets`, not guessed), adds it to each one's
-   `key_groups`, and re-encrypts them with `sops updatekeys` — no manual
-   YAML editing. Safe to re-run; it only fills in what's missing.
 
-   Doing this for every host that needs one at once — after adding several
+2. **Edit `.sops.yaml`** with the printed snippet, then re-encrypt every
-   new targets, or just to catch up any that were missed — is
+   secrets file you added the new host to:
-   `./scripts/secrets/sync-host-keys.sh --all`. See `scripts/secrets/sync-host-keys.sh --help`
+
-   for its other modes (`--remove`, `--regenerate-all-keys`).
+   ```sh
+   nix-shell -p sops --run 'sops updatekeys secrets/common.yaml'
+   ```
 
 3. **Commit and push.** The flake build the installer uses has to see the
    new recipient before you install, or decryption fails on first boot

docs/flake-lock-automation.md

@@ -8,14 +8,9 @@ and to verify that declared NixOS hosts still evaluate after dependency updates.
 - A scheduled workflow runs `nix flake update` once per week.
 - On GitHub, any resulting `flake.lock` change is proposed through a pull request.
 - On Gitea, the workflow can commit and push `flake.lock` directly when PR automation is not configured.
-- A separate CI workflow runs `scripts/codex-maintenance.sh` before merge.
+- A separate CI workflow evaluates every configured host before merge, listed
-  Its default mode scopes eval to the hosts/packages a change can affect,
+  dynamically via `nix eval --json .#nixosConfigurations --apply builtins.attrNames`
-  determined from a git diff against the PR base — but a `flake.lock` change
+  rather than hand-enumerated, so it can't drift as `<platform>-<buildtype>`
-  is treated as repo-wide and always falls back to evaluating every host, so
-  a lock-file update PR still gets full coverage. Hosts are still listed
-  dynamically via
-  `nix eval --json .#nixosConfigurations --apply builtins.attrNames` rather
-  than hand-enumerated, so that fallback can't drift as `<platform>-<buildtype>`
   targets are added or removed. See `README.md` for the current target list.
 
 ## Why hosts should stop using `--upgrade-all`

docs/nix-cache.md

@@ -11,70 +11,34 @@ This repository configures `nix-cache` as a **binary cache server** and a **remo
 - Client hosts import `modules/nix-cache/client.nix` and, when remote building is enabled, `modules/nix-cache/remote-builder-client.nix`.
 - The `nix-cache` host imports `modules/nix-cache/server.nix`.
 
-## Binary cache signing key
+## Binary cache signing keys (on nix-cache)
-
-`modules/nix-cache/client.nix` hardcodes every client's trust in one
-specific public key (`cache.local-1:usoWYanY3Kpq2+kDIS2nhWoLZiRxanmdysdzqCFBHW4=`).
-That means whichever host is currently playing the `nix-cache` role has to
-use that *exact* keypair — not a freshly generated one — or no client will
-accept substitutes from it (they'd just silently fall back to building
-from source). So unlike most per-host secrets, this one can't be
-self-generated on first boot; it's managed via sops-nix like every other
-secret in this repo, sourced from `secrets/nix-cache.yaml`'s
-`cache-priv-key` entry (`modules/nix-cache/server.nix`).
-
-**Adding or rotating the value:**
 
 ```bash
-nix-shell -p sops --run 'sops secrets/nix-cache.yaml'
+sudo install -d -m 0700 /etc/nix
+sudo nix-store --generate-binary-cache-key nix-cache-1   /etc/nix/cache-priv.pem   /etc/nix/cache-pub.pem
+sudo chmod 0600 /etc/nix/cache-priv.pem
+sudo chmod 0644 /etc/nix/cache-pub.pem
+cat /etc/nix/cache-pub.pem
 ```
 
-Add (or replace) a `cache-priv-key` entry with the private key file's exact
+Do not commit private keys.
-contents. If you don't have it yet, generate a keypair once:
+Do not commit new password hashes or live credentials. Existing committed hashes
-
+should be rotated and moved to host-local secret management.
-```bash
-nix-store --generate-binary-cache-key nix-cache-1 cache-priv.pem cache-pub.pem
-```
-
-— paste `cache-priv.pem`'s contents into the `cache-priv-key` entry above,
-delete both local files afterward, and update
-`trusted-public-keys` in `modules/nix-cache/client.nix` (and every already-built
-client) to match `cache-pub.pem` if this is a genuine rotation rather than
-a first-time bootstrap. Any `nixos-configurations.*-nix-cache` host picks
-the new key up automatically on next activation — no more manual
-`/etc/nix/cache-priv.pem` install step.
 
 ## Remote builder SSH keys
 
-Each client authenticates as `nixremote` using its **own default root SSH
+On each client, install the private key used to authenticate as `nixremote`:
-identity** (`/root/.ssh/id_ed25519`) — not a separately-named or shared
-keypair. If a client doesn't have one yet:
 
 ```bash
-sudo ssh-keygen -t ed25519 -N '' -f /root/.ssh/id_ed25519
+sudo install -d -m 0700 /root/.ssh
+sudo install -m 0600 ./nixremote /root/.ssh/nixremote
+sudo ssh -i /root/.ssh/nixremote nixremote@nix-cache nix-store --version
 ```
 
-Then add its `.pub` contents as a new entry in `vars.remoteBuilderAuthorizedKeys`
+On `nix-cache`, install the matching public key used by `nixremote` authorized keys.
-(`variables.nix`) and rebuild `nix-cache` to pick it up (that list is
-declarative — an imperative `ssh-copy-id nixremote@nix-cache` won't stick;
-it gets overwritten on every rebuild). Verify with:
 
-```bash
+The committed `nixremote` authorized keys are public SSH keys only. Keep the
-sudo ssh -i /root/.ssh/id_ed25519 nixremote@nix-cache nix-store --version
+matching private keys on client hosts and out of the repository.
-```
-
-The committed `remoteBuilderAuthorizedKeys` entries are public SSH keys
-only. Keep the matching private keys on client hosts and out of the
-repository.
-
-nix-cache's own SSH *host* key is trusted declaratively via
-`programs.ssh.knownHosts` in `modules/nix-cache/remote-builder-client.nix`,
-sourced from `vars.nixCacheHostKey` (`variables.nix`) — every client rebuild
-picks it up automatically, so distributed builds don't fail with "Host key
-verification failed" on a client that has never manually SSH'd to nix-cache
-before. If nix-cache's host key is ever rotated or the host rebuilt from
-scratch, update `vars.nixCacheHostKey` to match its new
-`/etc/ssh/ssh_host_ed25519_key.pub`.
 
 ## Manual verification
 
@@ -84,8 +48,8 @@ After deployment:
 curl http://nix-cache/nix-cache-info
 nix store ping --store http://nix-cache
 nix show-config | grep -E 'substituters|trusted-public-keys|builders-use-substitutes'
-sudo ssh -i /root/.ssh/id_ed25519 nixremote@nix-cache nix-store --version
+sudo ssh -i /root/.ssh/nixremote nixremote@nix-cache nix-store --version
-nix build nixpkgs#hello --builders 'ssh://nixremote@nix-cache x86_64-linux /root/.ssh/id_ed25519 4 2 big-parallel,kvm,nixos-test,benchmark' -L
+nix build nixpkgs#hello --builders 'ssh://nixremote@nix-cache x86_64-linux /root/.ssh/nixremote 4 2 big-parallel,kvm,nixos-test,benchmark' -L
 nix path-info -r nixpkgs#hello
 curl -I "http://nix-cache/$(basename "$(nix path-info nixpkgs#hello)").narinfo"
 ```

docs/proxmox-images.md

@@ -1,116 +0,0 @@
-# Proxmox VM disk images
-
-`proxmox-*` hosts (VM platform, not `lxc-*`) can be built as standalone,
-ready-to-attach `.raw` disk images via disko's own image-builder — no
-`nixos-install`, no live installer boot. This uses the same `disko.devices`
-config (`modules/disko/proxmox.nix`) already used to format a real disk on
-install, so there's nothing host-specific to write; it's available for every
-`proxmox-*` target automatically.
-
-`scripts/proxmox/create-proxmox-resource.sh --type vm --host <name>` automates the
-whole walkthrough below (and the equivalent LXC one) end to end, including
-host-key handling and building the image directly on the Proxmox node
-itself (no local build, no image transfer) — see its `--help`. The steps
-here are what it runs under the hood, useful for doing any of it by hand
-or understanding what it does before you trust it against real
-infrastructure.
-
-## Building
-
-```sh
-nix build .#nixosConfigurations.proxmox-server.config.system.build.diskoImagesScript
-sudo ./result --build-memory 2048
-```
-
-This produces `<hostname>.raw` in the current directory (e.g. `server.raw`
-for `proxmox-server`, matching `networking.hostName`, not the flake attribute
-name — every `proxmox-*` host gets a distinctly named image instead of all
-of them producing an identical `main.raw`). The script builds inside a
-temporary QEMU VM and moves the finished image out to the working directory
-when done; `--build-memory` controls how much RAM that build VM gets.
-
-`disko.devices.disk.main.imageSize` (currently `20G`, in
-`modules/disko/proxmox.nix`) sets the image's total size — disko doesn't
-support auto-resizing, so this needs to comfortably fit ESP + swap + root at
-build time. Grow the virtual disk (and resize the filesystem) in Proxmox
-after attaching if a host needs more than that; this is the normal way to
-size these images, not a one-time decision to get exactly right up front.
-
-## Host keys
-
-The disko image script runs a real activation pass inside its temporary
-build VM while constructing the image — the same sops-nix
-activation-before-first-boot problem the installer and LXC tarball workflows
-have (see `docs/auto-installer.md`) applies here too, unmodified. Disko has
-a native mechanism for it:
-
-```sh
-sudo ./result \
-  --pre-format-files host-keys/server_ssh_host_ed25519_key /etc/ssh/ssh_host_ed25519_key \
-  --pre-format-files host-keys/server_ssh_host_ed25519_key.pub /etc/ssh/ssh_host_ed25519_key.pub \
-  --build-memory 2048
-```
-
-Generate the key first with `scripts/secrets/sync-host-keys.sh <hostname>`, same
-as any other host — see `docs/auto-installer.md` for the full walkthrough
-(it registers the new key in `.sops.yaml` and re-encrypts the affected
-`secrets/*.yaml` files too, no manual editing needed).
-
-## Deploying to Proxmox
-
-The image needs **UEFI (OVMF)**, not Proxmox's default SeaBIOS —
-`modules/boot/efi.nix` uses `systemd-boot`, which only works with UEFI
-firmware. `virtio-scsi` is safe to use as the disk bus:
-`hardware-configuration/vm/proxmox.nix` already includes `virtio_scsi` in
-its initrd kernel modules.
-
-1. Copy the image to the Proxmox host:
-
-   ```sh
-   scp server.raw root@<proxmox-host>:/var/lib/vz/import/
-   ```
-
-2. Create an empty VM shell (no disk yet) — replace `<vmid>` with a free ID
-   and `<storage>` with your storage pool's name (`pvesm status` or
-   Datacenter → Storage in the web UI):
-
-   ```sh
-   qm create <vmid> --name proxmox-server --memory 2048 --cores 2 \
-     --net0 virtio,bridge=vmbr0 \
-     --bios ovmf --machine q35 \
-     --scsihw virtio-scsi-pci \
-     --efidisk0 <storage>:1,efitype=4m,pre-enrolled-keys=0
-   ```
-
-   (`--efidisk0` is required for UEFI — it's where OVMF persists boot-entry
-   NVRAM; without it, systemd-boot's boot entry may not survive a reboot.)
-
-3. Import the raw disk into storage:
-
-   ```sh
-   qm importdisk <vmid> /var/lib/vz/import/server.raw <storage>
-   ```
-
-   This prints the resulting disk identifier (e.g. `vm-<vmid>-disk-1`).
-
-4. Attach it and set it as the boot disk:
-
-   ```sh
-   qm set <vmid> --scsi0 <storage>:vm-<vmid>-disk-1
-   qm set <vmid> --boot order=scsi0
-   ```
-
-5. Boot it:
-
-   ```sh
-   qm start <vmid>
-   ```
-
-No install step — it boots straight into the already-activated system.
-
-## Why not `nix build .#nixosConfigurations.<host>.config.system.build.vm`?
-
-That's a different, unrelated feature — `system.build.vm` (`nixos-rebuild
-build-vm`) produces an ephemeral QEMU script for locally testing a
-configuration, not a distributable disk image. It's not part of this
-workflow.

docs/pxe-boot.md

@@ -1,10 +1,6 @@
 # pxe-boot
 
-The `pxe-boot` host serves HTTP boot assets for iPXE clients — including
+The `pxe-boot` host serves HTTP boot assets for iPXE clients.
-self-staged copies of both this flake's own auto-installer netboot image
-(see `docs/auto-installer.md` for what that image actually is and does once
-booted) and a vanilla, unmodified NixOS minimal netboot image for plain
-rescue/inspection use.
 
 ## Host Role
 
@@ -29,8 +25,7 @@ The host creates these directories with systemd tmpfiles:
 /srv/pxe
 /srv/pxe/http
 /srv/pxe/http/images
-/srv/pxe/http/auto-installer
+/srv/pxe/http/nixos
-/srv/pxe/http/nixos-minimal
 /srv/pxe/http/systemrescue
 /srv/pxe/http/ubuntu
 /srv/pxe/http/rescue
@@ -39,7 +34,7 @@ The host creates these directories with systemd tmpfiles:
 
 Mount shared image storage under `/srv/pxe/http`, preferably
 `/srv/pxe/http/images` unless a menu entry expects files in a specific
-directory such as `/srv/pxe/http/auto-installer`.
+directory such as `/srv/pxe/http/nixos`.
 
 The HTTP iPXE chain is:
 
@@ -52,37 +47,20 @@ undionly.kpxe or ipxe.efi
 
 The generated menu currently exposes entries for:
 
-- NixOS Auto-Installer
+- NixOS installer
-- NixOS Minimal
 - SystemRescue environment
 - iPXE shell
 - Reboot
 
-Both NixOS entries chain-load a `netboot.ipxe` staged into their own
+The NixOS installer entry chain-loads `/srv/pxe/http/nixos/netboot.ipxe`,
-directory (`/srv/pxe/http/auto-installer/netboot.ipxe` and
+which is nixpkgs' own generated netboot iPXE script (correct `init=`/`initrd=`
-`/srv/pxe/http/nixos-minimal/netboot.ipxe`), each nixpkgs' own generated
+kernel parameters included) rather than a hand-rolled boot line — that script
-netboot iPXE script (correct `init=`/`initrd=` kernel parameters included)
+in turn expects its kernel/initrd siblings in the same directory. All three
-rather than a hand-rolled boot line — that script in turn expects its
+files (`bzImage`, `initrd`, `netboot.ipxe`) are built from this flake's own
-kernel/initrd siblings in the same directory. Each directory's three files
+`modules/installer/iso.nix` netboot image (the same one `nix build .#pxe`
-(`bzImage`, `initrd`, `netboot.ipxe`) are built from source and staged
+produces) and staged automatically by
-automatically by `modules/pxe-boot/stage-installer-artifacts.nix` via
+`modules/pxe-boot/stage-installer-artifacts.nix` via `systemd.tmpfiles.rules`
-`systemd.tmpfiles.rules` — no manual operator step required:
+— no manual operator step required.
-
-- `auto-installer` is this flake's own `netbootSystem` (`flake.nix`) — the
-  same auto-installer image `nix build .#pxe` produces. See
-  `docs/auto-installer.md`.
-- `nixos-minimal` is `netbootMinimalSystem` (`flake.nix`) — nixpkgs'
-  `netboot-minimal.nix` composed on its own, with none of this flake's
-  auto-installer wiring (no `common.nix`, no `auto-install.sh`, no baked
-  host keys or custom users). Same `nix build .#pxe-minimal` mechanism as
-  the auto-installer image, just a different module composition. Useful
-  as a plain rescue/inspection shell that doesn't assume anything about
-  this flake.
-
-Both images set `networking.hostName` to match their menu entry/staged
-directory name (`auto-installer` / `nixos-minimal`), so each one's
-generated system name (`nixos-system-<name>-*`) is self-describing rather
-than the nixpkgs default of `nixos-system-nixos-*` for both.
 
 The SystemRescue entry expects the source ISO at:
 
@@ -105,7 +83,7 @@ uses `archiso_http_srv` to fetch the squashfs payload over HTTP.
 Safe evaluation check:
 
 ```bash
-nix eval .#nixosConfigurations.proxmox-pxe-boot.config.system.build.toplevel.drvPath --raw
+nix eval .#nixosConfigurations.pxe-boot.config.system.build.toplevel.drvPath --raw
 ```
 
 After deployment by an operator, basic service checks are:

flake-target-refactor-spec.md

@@ -0,0 +1,143 @@
+# Spec: Refactor Flake Targets into Platform × Build-Type Matrix
+
+## Context
+
+The flake at `~/nixos` currently defines these output targets (flat, ad-hoc naming):
+
+- `docker`
+- `linode-minimal`
+- `nix-cache`
+- `nix-minimal`
+- `nixos`
+- `server`
+- `pxe-boot`
+
+Some already follow a `platform-buildtype` convention (`linode-minimal`), most don't.
+`~/nix-auto-installer` is a related repo and should be checked for any coupling to
+these target names (scripts, docs, CI, or install automation that reference them by
+name) before renaming anything.
+
+## Goal
+
+Restructure the flake so targets are generated from two orthogonal concepts:
+
+**Build types** (what the system is for):
+- `minimal`
+- `nix-cache`
+- `server`
+- `docker`
+- `pxe-boot`
+- `gui`
+
+**Platforms** (what it's deployed on):
+- `linode` (Linode VM)
+- `proxmox` (Proxmox VM)
+- `lxc` (Proxmox LXC container)
+
+Final targets should be named consistently as `<platform>-<buildtype>`, e.g.:
+
+```
+linode-minimal    proxmox-minimal    lxc-minimal
+linode-nix-cache  proxmox-nix-cache  lxc-nix-cache
+linode-server     proxmox-server     lxc-server
+linode-docker     proxmox-docker     lxc-docker
+linode-pxe-boot   proxmox-pxe-boot   lxc-pxe-boot
+linode-gui        proxmox-gui        lxc-gui
+```
+
+That's the full matrix (18 targets) if every build type applies to every platform.
+See **Open Questions** below — some combinations may not make sense and should be
+confirmed with me before being built out, not silently included or dropped.
+
+## Migration mapping (old → new)
+
+| Old target        | New target                                          | Notes |
+|--------------------|------------------------------------------------------|-------|
+| `linode-minimal`   | `linode-minimal`                                      | Already correct, keep as-is |
+| `nix-minimal`      | likely `proxmox-minimal` or a platform-less base module | Ambiguous — see Open Questions |
+| `nix-cache`        | base module consumed by `linode-nix-cache`, `proxmox-nix-cache`, `lxc-nix-cache` | Currently platform-less; needs to become a build-type module, not a standalone target |
+| `server`           | base module consumed by `linode-server`, `proxmox-server`, `lxc-server` | Same as above |
+| `docker`           | base module consumed by `linode-docker`, `proxmox-docker`, `lxc-docker` | Confirm docker actually makes sense as an LXC/VM guest build vs. a standalone container image — see Open Questions |
+| `pxe-boot`         | TBD — may stay a single target rather than a per-platform one | See Open Questions |
+| `nixos`            | TBD — unclear what this maps to in the new scheme | See Open Questions |
+
+## Open Questions (Claude Code: raise these with me before implementing, don't guess)
+
+1. **`nixos` target** — what is this currently used for (bare metal install, dev
+   shell, template)? It doesn't obviously map to any of the six build types.
+2. **`nix-minimal` vs `linode-minimal`** — are these two different things, or is
+   `nix-minimal` a leftover/duplicate?
+3. **`pxe-boot` and `gui` across all three platforms** — does PXE boot make sense
+   for an LXC container or a cloud VM (Linode), or is it inherently bare-metal/
+   network-boot only and should remain a single non-platform target? Does `gui`
+   make sense inside an LXC container?
+4. **`docker` as a build type** — is this "a NixOS host configured to run Docker"
+   (which would sensibly have linode/proxmox/lxc variants), or "a Docker container
+   image built by the flake" (which wouldn't take a platform prefix at all, since
+   it doesn't run on Linode/Proxmox/LXC as a guest OS)? These are structurally
+   different and change how it should be wired in.
+5. Confirm whether all 18 combinations should actually exist, or whether this is
+   meant to produce only the combinations that are genuinely useful (e.g. maybe no
+   one needs `lxc-pxe-boot`).
+
+## Implementation approach
+
+1. **Inventory first.** Read the current `flake.nix` and any `nixosConfigurations`/
+   `modules` structure. Map every existing target to what module(s) it actually
+   pulls in. Don't assume — confirm against the real file contents.
+2. **Separate build-type and platform into their own module directories**, e.g.:
+   ```
+   modules/build-types/minimal.nix
+   modules/build-types/nix-cache.nix
+   modules/build-types/server.nix
+   modules/build-types/docker.nix
+   modules/build-types/pxe-boot.nix
+   modules/build-types/gui.nix
+
+   modules/platforms/linode.nix
+   modules/platforms/proxmox.nix
+   modules/platforms/lxc.nix
+   ```
+   Build-type modules should contain only what makes a system "minimal" vs
+   "server" vs "gui", etc. Platform modules should contain only what's specific
+   to running as a Linode VM vs Proxmox VM vs LXC container (virtualisation
+   guest tools, boot method, filesystem/image format, LXC-specific constraints
+   like no kernel modules, etc).
+3. **Generate the target matrix programmatically** in `flake.nix` rather than
+   hand-writing 18 near-identical `nixosConfigurations` entries — e.g. a small
+   function that takes a platform name and build-type name, composes the two
+   modules plus any shared base module, and produces the named output. This
+   keeps future build types/platforms a one-line addition rather than a copy-paste
+   job.
+4. **Only build combinations we've confirmed make sense** (see Open Questions) —
+   don't emit all 18 by default if some are structurally invalid.
+5. **Preserve existing working configs during the transition.** Don't delete the
+   old target names until their replacements build successfully — rename/alias
+   at the end, not the start, so there's no window where the flake is broken.
+
+## Verification
+
+For every new target produced:
+```bash
+nix flake check
+nix build .#nixosConfigurations.<target>.config.system.build.toplevel
+```
+Confirm each builds without evaluation errors before considering it done. If a
+target fails to build, report which one and why rather than silently skipping it.
+
+## Deliverables
+
+- Refactored `flake.nix` using the composed module + generated-matrix approach.
+- New `modules/build-types/*.nix` and `modules/platforms/*.nix` files.
+- Old flat target names removed only after their replacements are verified.
+- A short `README.md` (or section in existing docs) listing the final target
+  names and what each one is for.
+- A summary at the end of what changed, what was removed, and any of the Open
+  Questions above that got resolved differently than expected.
+
+## Out of scope
+
+- Don't touch `~/nix-auto-installer` contents beyond checking it for references
+  to the old target names — if changes there are needed, flag them, don't make
+  them without confirming.
+- Don't add new build types or platforms beyond the ones listed here.

flake.lock

@@ -95,11 +95,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1784350909,
+        "lastModified": 1783740085,
-        "narHash": "sha256-ZWyzLbS1yKUTeFJLmdVuWNnHttL333/ldJbEE+KzCrM=",
+        "narHash": "sha256-qajyHfZY29G2oEQk+uHxmsJcRoBUBXP9maTpFlwP/dI=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "4ce190229c73d44536caa7072f6308fb2d8feeb3",
+        "rev": "3cd22efe6471dc7365c822bd9ad73a21e55f38fb",
         "type": "github"
       },
       "original": {
@@ -147,11 +147,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1784432872,
+        "lastModified": 1784011430,
-        "narHash": "sha256-n3gKTBIV4ZA5VQpUakffBe3KGu4+mhPoA34rrqS0GkA=",
+        "narHash": "sha256-lDebytrYdd47IBLwvNOD+6AGeoqZ78CIKlp70hzW280=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "fd1462031fdee08f65fd0b4c6b64e22239a77870",
+        "rev": "8eeec934ae0dbeca3d7868c059568a65c08b2fc3",
         "type": "github"
       },
       "original": {

flake.nix

@@ -33,9 +33,6 @@
       # nix-cache itself consumes the nix-cache substituter and remote
       # builder.
       mkTarget = { platform, buildType, hostPath, homeFile ? ./modules/common/home.nix }:
-        let
-          flakeTarget = "${platform}-${buildType}";
-        in
         nixpkgs.lib.nixosSystem {
           inherit system;
           modules = [
@@ -45,7 +42,7 @@
             ./modules/platforms/${platform}.nix
             ./modules/build-types/${buildType}.nix
             hostPath
-            { environment.etc."flake-target".text = flakeTarget; }
+            { environment.etc."flake-target".text = "${platform}-${buildType}"; }
             home-manager.nixosModules.home-manager
             {
               home-manager = {
@@ -59,13 +56,7 @@
             ./modules/nix-cache/client.nix
             ./modules/nix-cache/remote-builder-client.nix
           ];
-          # flakeTarget is passed via specialArgs (not read back from
+          specialArgs = { inherit inputs vars netbootSystem; };
-          # config.environment.etc."flake-target" above) specifically so
-          # modules/platforms/lxc.nix can use it to select its own host key
-          # file without a same-option circular dependency (a module
-          # contributing to environment.etc can't read the merged
-          # environment.etc it's itself contributing to).
-          specialArgs = { inherit inputs vars netbootSystem netbootMinimalSystem flakeTarget; };
         };
 
       # Generated platform x build-type matrix. pxe-boot has no linode
@@ -91,16 +82,9 @@
         linode-gui = mkTarget { platform = "linode"; buildType = "gui"; hostPath = ./hosts/nixos/host.nix; homeFile = ./hosts/nixos/home.nix; };
         proxmox-gui = mkTarget { platform = "proxmox"; buildType = "gui"; hostPath = ./hosts/nixos/host.nix; homeFile = ./hosts/nixos/home.nix; };
         lxc-gui = mkTarget { platform = "lxc"; buildType = "gui"; hostPath = ./hosts/nixos/host.nix; homeFile = ./hosts/nixos/home.nix; };
-        baremetal-gui = mkTarget { platform = "baremetal"; buildType = "gui"; hostPath = ./hosts/nixos/host.nix; homeFile = ./hosts/nixos/home.nix; };
 
         proxmox-pxe-boot = mkTarget { platform = "proxmox"; buildType = "pxe-boot"; hostPath = ./hosts/pxe-boot/host.nix; };
         lxc-pxe-boot = mkTarget { platform = "lxc"; buildType = "pxe-boot"; hostPath = ./hosts/pxe-boot/host.nix; };
-
-        linode-tailscale-router = mkTarget { platform = "linode"; buildType = "tailscale-router"; hostPath = ./hosts/tailscale-router/host.nix; };
-        proxmox-tailscale-router = mkTarget { platform = "proxmox"; buildType = "tailscale-router"; hostPath = ./hosts/tailscale-router/host.nix; };
-        lxc-tailscale-router = mkTarget { platform = "lxc"; buildType = "tailscale-router"; hostPath = ./hosts/tailscale-router/host.nix; };
-
-        lxc-tor-relay = mkTarget { platform = "lxc"; buildType = "tor-relay"; hostPath = ./hosts/tor-relay/host.nix; };
       };
 
       # Auto-install environments (migrated from the former nix-auto-installer
@@ -116,94 +100,51 @@
           modules = [ ./modules/installer/iso.nix ];
           specialArgs = { inherit vars; };
         };
+
+        proxmox-lxc = nixpkgs.lib.nixosSystem {
+          inherit system;
+          modules = [ ./modules/installer/proxmox-lxc.nix ];
+          specialArgs = { inherit vars; };
+        };
       };
 
       # Same installer environment, built as netboot (kernel + initrd +
       # iPXE script) instead of an ISO — this is what packages.pxe bundles.
-      #
-      # Deliberately imports common.nix directly, NOT ./modules/installer/iso.nix
-      # (which pulls in nixpkgs' installation-cd-minimal.nix) -- confirmed live
-      # that composing the ISO module together with netboot-minimal.nix hangs
-      # every boot waiting for a device that can never exist on a netboot
-      # client ("A start job is running for /dev/disk/by-label/nixos-minimal-...").
-      # Both installation-cd-base.nix and netboot.nix set fileSystems."/" via
-      # the identical lib.mkImageMediaOverride (mkOverride 60) priority --
-      # genuinely conflicting root-filesystem strategies (ISO-by-label vs.
-      # netboot-tmpfs) at the same priority, and the ISO one was winning.
-      # netboot-minimal.nix's own chain (netboot-base.nix) already imports
-      # profiles/installation-device.nix independently, so common.nix's
-      # initialHashedPassword override (which assumes that profile is
-      # present) still applies correctly without iso.nix in the mix.
-      #
-      # networking.hostName is set explicitly (rather than left at nixpkgs'
-      # own "nixos" default) so this image's generated system name
-      # (nixos-system-auto-installer-*) matches its iPXE menu entry —
-      # see modules/build-types/pxe-boot.nix's :auto-installer item — and
-      # its staged directory, /srv/pxe/http/auto-installer.
       netbootSystem = nixpkgs.lib.nixosSystem {
         inherit system;
         modules = [
-          ./modules/installer/common.nix
+          ./modules/installer/iso.nix
           ({ modulesPath, ... }: {
             imports = [
               (modulesPath + "/installer/netboot/netboot-minimal.nix")
             ];
           })
-          { networking.hostName = "auto-installer"; }
         ];
         specialArgs = { inherit vars; };
       };
 
-      # A genuinely vanilla NixOS minimal netboot image: nixpkgs'
-      # netboot-minimal.nix on its own, with none of this flake's
-      # auto-installer wiring (no common.nix — no auto-install.sh, no
-      # baked host keys, no custom users/passwords). Built from source via
-      # the same nixosSystem + netboot-minimal.nix path as netbootSystem
-      # above, so both go through an identical build mechanism; the only
-      # difference is what's composed in. hostName again matches this
-      # image's iPXE menu entry (:nixos-minimal) and staged directory
-      # (/srv/pxe/http/nixos-minimal).
-      netbootMinimalSystem = nixpkgs.lib.nixosSystem {
-        inherit system;
-        modules = [
-          ({ modulesPath, ... }: {
-            imports = [
-              (modulesPath + "/installer/netboot/netboot-minimal.nix")
-            ];
-          })
-          { networking.hostName = "nixos-minimal"; }
-        ];
-      };
-
     in
     {
 
       nixosConfigurations = generatedTargets // installerTargets;
 
-      # Buildable auto-installer artifacts (`nix build .#<name>`). No `lxc`
+      # Buildable auto-installer artifacts (`nix build .#<name>`), migrated
-      # variant (installer-boots-as-an-LXC-container) or `all` bundle
+      # unchanged from nix-auto-installer's interface.
-      # anymore — lxc-* and proxmox-* hosts deploy via their own tarball/
+      packages.${system} = rec {
-      # disk-image outputs instead (see docs/auto-installer.md and
-      # docs/proxmox-images.md), which left the installer's own LXC form
-      # with no real use case: it's excluded from the install menu (same
-      # bind-mount problem as any LXC nixos-install target) and nothing
-      # else needed booting the installer itself as a container.
-      packages.${system} = {
         iso = installerTargets.installer.config.system.build.isoImage;
 
+        lxc = installerTargets.proxmox-lxc.config.system.build.tarball;
+
         pxe = pkgs.linkFarm "pxe" [
           { name = "netboot.ipxe"; path = netbootSystem.config.system.build.netbootIpxeScript; }
           { name = "initrd"; path = netbootSystem.config.system.build.netbootRamdisk; }
           { name = "kernel"; path = netbootSystem.config.system.build.kernel; }
         ];
 
-        # Vanilla NixOS minimal netboot bundle — see netbootMinimalSystem
+        all = pkgs.linkFarm "all" [
-        # above. Staged onto the pxe-boot host alongside packages.pxe by
+          { name = "iso"; path = iso; }
-        # modules/pxe-boot/stage-installer-artifacts.nix.
+          { name = "lxc"; path = lxc; }
-        pxe-minimal = pkgs.linkFarm "pxe-minimal" [
+          { name = "pxe"; path = pxe; }
-          { name = "netboot.ipxe"; path = netbootMinimalSystem.config.system.build.netbootIpxeScript; }
-          { name = "initrd"; path = netbootMinimalSystem.config.system.build.netbootRamdisk; }
-          { name = "kernel"; path = netbootMinimalSystem.config.system.build.kernel; }
         ];
       };
     };

hosts/nixos/home.nix

@@ -19,15 +19,11 @@
       nextcloud-client
       #    vscode
       chromium
-      claude-code
-      fish
-      sops
     ];
 
     # Optional: set environment vars
     sessionVariables = {
       EDITOR = "vim";
-      SOPS_AGE_KEY_FILE = "~/.config/sops/age/keys.txt";
     };
 
     file = {
@@ -35,7 +31,7 @@
         [Desktop Entry]
         Type=Application
         Name=Proxmox (Chromium)
-        Exec=chromium --app=https://pve.${vars.homeDomain}:${toString vars.ports.pveWeb} --window-size=1920,1080 --window-position=0,0
+        Exec=chromium --app=https://pve.${vars.homeDomain}:${toString vars.pveWebPort} --window-size=1920,1080 --window-position=0,0
         Icon=${config.home.homeDirectory}/.local/share/icons/proxmox.png
         Terminal=false
         Categories=Hypervisor;
@@ -45,7 +41,7 @@
         [Desktop Entry]
         Type=Application
         Name=Proxmox Backup Server (Chromium)
-        Exec=chromium --app=https://${vars.pbsIp}:${toString vars.ports.pbsWeb} --window-size=1920,1080 --window-position=0,0
+        Exec=chromium --app=https://${vars.pbsIp}:${toString vars.pbsWebPort} --window-size=1920,1080 --window-position=0,0
         Icon=${config.home.homeDirectory}/.local/share/icons/proxmox.png
         Terminal=false
         Categories=backup;
@@ -55,7 +51,7 @@
         [Desktop Entry]
         Type=Application
         Name=Proxmox (Firefox)
-        Exec=firefox --new-instance https://pve.${vars.homeDomain}:${toString vars.ports.pveWeb} --profile ProxmoxWebApp --window-size=1920,1080 --class ProxmoxWebApp
+        Exec=firefox --new-instance https://pve.${vars.homeDomain}:${toString vars.pveWebPort} --profile ProxmoxWebApp --window-size=1920,1080 --class ProxmoxWebApp
         Icon=${config.home.homeDirectory}/.local/share/icons/proxmox.png
         Terminal=false
         Categories=Hypervisor;
@@ -65,7 +61,7 @@
         [Desktop Entry]
         Type=Application
         Name=Proxmox Backup Server (Firefox)
-        Exec=firefox --new-window https://${vars.pbsIp}:${toString vars.ports.pbsWeb} --profile PbsWebApp --window-size=1920,1080 --class PbsWebApp
+        Exec=firefox --new-window https://${vars.pbsIp}:${toString vars.pbsWebPort} --profile PbsWebApp --window-size=1920,1080 --class PbsWebApp
         Icon=${config.home.homeDirectory}/.local/share/icons/proxmox.png
         Terminal=false
         Categories=backup;

hosts/nixos/host.nix

@@ -1,17 +1,8 @@
 _:
 
 {
-  imports = [
-    ../../modules/networking/wifi.nix
-  ];
-
   networking.hostName = "nixos";
 
-  # Only needed now that baremetal-gui exists (ZFS root) -- harmless on the
-  # ext4-rooted linode/proxmox/lxc-gui variants, so set unconditionally
-  # rather than only on the baremetal platform.
-  networking.hostId = "de6a9ffc";
-
   # Preserved from the pre-refactor `nixos` target — stateVersion must never
   # be bumped on an already-installed machine.
   system.stateVersion = "25.05";

hosts/server/host.nix

@@ -14,7 +14,7 @@
   services.beszel.agent.environment = {
     #DOCKER_HOST = "tcp://docker-socket-proxy:2375";
     KEY = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFPR9kwtC4TAeTRu46A7+opZsYpxqkRJ+x/ZyB2GWCeG";
-    EXTRA_FILESYSTEMS = "${vars.storageRoot}/${vars.nfsShares.dockerVolumes.subpath}";
+    EXTRA_FILESYSTEMS = "${vars.storageRoot}/docker/volumes";
     LOG_LEVEL = "debug";
   };
 

hosts/tailscale-router/host.nix

@@ -1,10 +0,0 @@
-_:
-
-{
-  networking.hostName = "tailscale-router";
-
-  # No networking.hostId: only ZFS-touching hosts (server, docker) need one
-  # for pool-import safety, and this host does neither.
-
-  system.stateVersion = "26.05";
-}

hosts/tor-relay/host.nix

@@ -1,23 +0,0 @@
-{ ... }:
-
-{
-  imports = [
-    (import ../../modules/beszel/host-token.nix {
-      name = "tor-relay";
-      sopsFile = ../../secrets/tor-relay.yaml;
-    })
-  ];
-
-  networking.hostName = "tor-relay";
-
-  # No networking.hostId: only ZFS-touching hosts (server, docker) need one
-  # for pool-import safety, and this host does neither.
-
-  services.beszel.agent.environment = {
-    KEY = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFPR9kwtC4TAeTRu46A7+opZsYpxqkRJ+x/ZyB2GWCeG";
-  };
-
-  # A genuinely new host (not a pre-refactor carry-over), so it tracks the
-  # flake's current nixpkgs release rather than being pinned to an older one.
-  system.stateVersion = "26.05";
-}

modules/beszel/enable-agent.nix

@@ -4,15 +4,6 @@
   services.beszel.agent.enable = true;
   services.beszel.agent.environment = {
     #DOCKER_HOST = "tcp://docker-socket-proxy:2375";
-    HUB_URL = "http://${vars.dockerHost}.${vars.homeDomain}:${toString vars.ports.beszelHub}";
+    HUB_URL = "http://${vars.dockerHost}.${vars.homeDomain}:${toString vars.beszelHubPort}";
   };
-
-  # The upstream module runs beszel-agent under DynamicUser with
-  # ProtectSystem = "strict" and no StateDirectory, so /var/lib/beszel-agent
-  # (where the agent persists its hub-pairing fingerprint, per
-  # https://github.com/henrygd/beszel/discussions/1542) isn't writable --
-  # every restart silently fails to save it and regenerates a fresh one in
-  # memory, permanently desyncing from whatever the hub has on record after
-  # the very first successful pairing. Give it real persistent storage.
-  systemd.services.beszel-agent.serviceConfig.StateDirectory = "beszel-agent";
 }

modules/build-types/docker.nix

@@ -28,18 +28,13 @@
   boot.supportedFilesystems = [ "nfs" ];
 
   systemd.tmpfiles.rules = [
-    "L+ /home/${vars.primaryUser}/docker - - - - ${vars.nfsShares.dockerConfig.mountpoint}"
+    "L+ /home/nixos/docker - - - - /mnt/docker/config"
-    "d /mnt/docker 0755 ${vars.primaryUser} users -"
+    "d /mnt/docker 0755 nixos users -"
-    "d ${vars.nfsShares.raspiVolumes.mountpoint} 0755 ${vars.primaryUser} users -"
+    "d /mnt/raspi-backup 0755 nixos users -"
   ];
 
-  users.users.${vars.primaryUser}.extraGroups = [ "docker" ];
+  users.users.nixos.extraGroups = [ "docker" ];
   services.openssh.settings.PermitRootLogin = "yes";
 
-  networking.firewall.allowedTCPPorts = [
+  networking.firewall.allowedTCPPorts = [ 80 8080 443 vars.beszelHubPort ];
-    vars.ports.dockerHttp
-    vars.ports.dockerExtra
-    vars.ports.dockerHttps
-    vars.ports.beszelHub
-  ];
 }

modules/build-types/gui.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, lib, inputs, vars, ... }:
+{ config, pkgs, lib, inputs, ... }:
 
 {
   environment.systemPackages = with pkgs; [
@@ -18,7 +18,7 @@
   ];
 
   boot.loader.grub.useOSProber = true;
-programs.direnv.enable = true;
+
   services = {
     xserver = {
       enable = true;
@@ -65,7 +65,7 @@ programs.direnv.enable = true;
   # The networkmanager group only exists when NM is actually enabled — the
   # lxc platform module force-disables it, so don't add the user to a group
   # that won't exist there.
-  users.users.${vars.primaryUser}.extraGroups = lib.mkIf config.networking.networkmanager.enable [ "networkmanager" ];
+  users.users.nixos.extraGroups = lib.mkIf config.networking.networkmanager.enable [ "networkmanager" ];
 
   programs.firefox.enable = true;
 

modules/build-types/minimal.nix

@@ -1,4 +1,4 @@
-{ lib, pkgs, config, vars, ... }:
+{ lib, pkgs, config, ... }:
 
 {
   networking.networkmanager.enable = true;
@@ -6,7 +6,7 @@
   # The networkmanager group only exists when NM is actually enabled — the
   # lxc platform module force-disables it, so don't add the user to a group
   # that won't exist there.
-  users.users.${vars.primaryUser}.extraGroups = lib.mkIf config.networking.networkmanager.enable [ "networkmanager" ];
+  users.users.nixos.extraGroups = lib.mkIf config.networking.networkmanager.enable [ "networkmanager" ];
 
   environment.systemPackages = with pkgs; [
     inetutils

modules/build-types/pxe-boot.nix

@@ -68,19 +68,15 @@ let
     set base ${pxeBaseUrl}
 
     menu PXE Boot Menu
-    item auto-installer NixOS Auto-Installer
+    item nixos NixOS Installer
-    item nixos-minimal NixOS Minimal
     item rescue Rescue Environment
     item shell iPXE Shell
     item reboot Reboot
 
     choose target && goto ''${target}
 
-    :auto-installer
+    :nixos
-    chain ''${base}/auto-installer/netboot.ipxe
+    chain ''${base}/nixos/netboot.ipxe
-
-    :nixos-minimal
-    chain ''${base}/nixos-minimal/netboot.ipxe
 
     :rescue
     chain ''${base}/systemrescue.ipxe
@@ -133,8 +129,7 @@ in
     "d ${pxeRoot} 0755 root root -"
     "d ${httpRoot} 0755 root root -"
     "d ${httpRoot}/images 0755 root root -"
-    "d ${httpRoot}/auto-installer 0755 root root -"
+    "d ${httpRoot}/nixos 0755 root root -"
-    "d ${httpRoot}/nixos-minimal 0755 root root -"
     "d ${httpRoot}/systemrescue 0755 root root -"
     "d ${httpRoot}/ubuntu 0755 root root -"
     "d ${httpRoot}/rescue 0755 root root -"
@@ -160,6 +155,6 @@ in
     };
   };
 
-  networking.firewall.allowedTCPPorts = [ vars.ports.pxeBootHttp ];
+  networking.firewall.allowedTCPPorts = [ 80 ];
-  networking.firewall.allowedUDPPorts = [ vars.ports.pxeBootTftp ];
+  networking.firewall.allowedUDPPorts = [ 69 ];
 }

modules/build-types/server.nix

@@ -1,74 +1,12 @@
-{ vars, lib, pkgs, ... }:
+{ vars, lib, ... }:
 
-let
-  poolName = lib.removePrefix "/" vars.storageRoot;
-
-  # For each NFS share subpath, generate every ancestor path so ZFS datasets
-  # are created parent-first.  e.g. "docker/config" → ["docker" "docker/config"]
-  ancestors = path:
-    let parts = lib.splitString "/" path;
-    in lib.imap1 (i: _: lib.concatStringsSep "/" (lib.take i parts)) parts;
-
-  poolDatasets = lib.unique (
-    lib.concatMap (share: ancestors share.subpath) (lib.attrValues vars.nfsShares)
-  );
-in
 {
   imports = [
     ../beszel/enable-agent.nix
     ../services/zfs/enable-service.nix
   ];
 
-  boot.zfs.extraPools = [ poolName ];
+  boot.zfs.extraPools = [ (lib.removePrefix "/" vars.storageRoot) ];
-
-  # On a fresh image deploy the data disk (scsi1) starts blank — no pool
-  # exists yet, so zfs-import-tank.service would spin for 60 s and fail.
-  # This service runs first: if the pool is already present it exits instantly;
-  # otherwise it creates it (with all required datasets) so the standard
-  # import service finds it ready on the very first boot.
-  systemd.services."zfs-init-${poolName}" = {
-    description = "Initialize '${poolName}' ZFS pool on first boot if not present";
-    wantedBy = [ "zfs-import-${poolName}.service" ];
-    before = [ "zfs-import-${poolName}.service" ];
-    after = [ "systemd-udev-settle.service" ];
-    unitConfig.DefaultDependencies = false;
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-    };
-    path = [ pkgs.zfs_unstable ];
-    script = ''
-      # Already imported — nothing to do.
-      if zpool list "${poolName}" >/dev/null 2>&1; then
-        exit 0
-      fi
-
-      # Pool exists on a device but not yet imported — let the standard
-      # zfs-import-${poolName}.service handle it normally.
-      if zpool import -d /dev/disk/by-id -N "${poolName}" 2>/dev/null; then
-        exit 0
-      fi
-
-      # No pool found at all.  Create it on the Proxmox data disk (scsi1),
-      # which appears as /dev/disk/by-id/scsi-*drive-scsi1 inside the VM.
-      DATA_DISK=""
-      for candidate in /dev/disk/by-id/scsi-*drive-scsi1; do
-        [[ "$candidate" == *-part* ]] && continue
-        [ -b "$candidate" ] && DATA_DISK="$candidate" && break
-      done
-
-      if [ -z "$DATA_DISK" ]; then
-        echo "zfs-init-${poolName}: no data disk found (expected /dev/disk/by-id/scsi-*drive-scsi1)" >&2
-        exit 1
-      fi
-
-      echo "zfs-init-${poolName}: creating pool on $DATA_DISK"
-      zpool create -f "${poolName}" "$DATA_DISK"
-      ${lib.concatMapStrings (ds: ''
-        zfs create "${poolName}/${ds}"
-      '') poolDatasets}
-    '';
-  };
 
   systemd.services.nfs-server = {
     after = [ "zfs-mount.service" ];
@@ -78,13 +16,13 @@ in
   services.nfs.server = {
     enable = true;
     exports = ''
-      ${vars.storageRoot}/${vars.nfsShares.dockerConfig.subpath} ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
+      ${vars.storageRoot}/docker/config ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
-      ${vars.storageRoot}/${vars.nfsShares.dockerVolumes.subpath} ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
+      ${vars.storageRoot}/docker/volumes ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
-      ${vars.storageRoot}/${vars.nfsShares.dockerDatabases.subpath} ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
+      ${vars.storageRoot}/docker/databases ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
-      ${vars.storageRoot}/${vars.nfsShares.nextcloudData.subpath} ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
+      ${vars.storageRoot}/docker/nextcloud-data ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
-      ${vars.storageRoot}/${vars.nfsShares.raspiVolumes.subpath} ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
+      ${vars.storageRoot}/raspi/volumes ${vars.lanCidr}(rw,sync,no_subtree_check,no_root_squash)
     '';
   };
 
-  networking.firewall.allowedTCPPorts = [ vars.ports.nfsRpcbind vars.ports.nfsd ];
+  networking.firewall.allowedTCPPorts = [ 111 2049 ];
 }

modules/build-types/tailscale-router.nix

@@ -1,19 +0,0 @@
-{ ... }:
-
-{
-  imports = [
-    ../tailscale/subnet-router.nix
-  ];
-
-  # "server", not "both": this build type advertises LAN subnet routes but
-  # doesn't use another tailscale exit node itself, so it doesn't need the
-  # "client"-side loose reverse-path filtering that "both" would also enable.
-  # Deliberately kept explicit here (not just relying on subnet-router.nix's
-  # own setting) so the intent is clear at the build-type level.
-  services.tailscale.useRoutingFeatures = "server";
-
-  # Forwarded subnet-router traffic arrives on tailscale0 already
-  # tailscale-authenticated -- the firewall's normal per-port allow-list
-  # would otherwise drop it. Standard NixOS/Tailscale subnet-router guidance.
-  networking.firewall.trustedInterfaces = [ "tailscale0" ];
-}

modules/build-types/tor-relay.nix

@@ -1,8 +0,0 @@
-{ ... }:
-
-{
-  imports = [
-    ../tor/enable-relay.nix
-    ../beszel/enable-agent.nix
-  ];
-}

modules/common/aliases.nix

@@ -17,26 +17,6 @@ let
       --refresh \
       --flake git+https://${vars.lanDomain}/beatzaplenty/nixos.git#$(cat /etc/flake-target)
   '';
-
-  # lxc-* hosts pre-seed their SSH host key at build time (see
-  # modules/platforms/lxc.nix) so sops-nix's .sops.yaml recipient matches on
-  # first boot -- without it, secrets permanently fail to decrypt (see that
-  # file's comment for the confirmed failure). That requires --impure plus
-  # NIXOS_HOST_KEYS_DIR pointing at the repo's host-keys/ dir, same pattern
-  # docs/auto-installer.md uses for the installer ISO. A function, not a
-  # shellAlias, since the target name has to interpolate into the middle of
-  # the flake attribute path, not just append after it. Must be run from the
-  # repo root, same as every other host-keys/ command in this repo.
-  buildImageFn = ''
-    buildImage() {
-      if [ -z "$1" ]; then
-        echo "usage: buildImage <flake-target>  (e.g. lxc-docker)" >&2
-        return 1
-      fi
-      NIXOS_HOST_KEYS_DIR="$(pwd)/host-keys" nix build --impure \
-        ".#nixosConfigurations.$1.config.system.build.tarball"
-    }
-  '';
 in
 {
   programs.bash = {
@@ -45,6 +25,5 @@ in
       "Switch-nix" = mySwitchCmd;
       "Test-nix" = myTestCmd;
     };
-    initExtra = buildImageFn;
   };
 }

modules/common/configuration.nix

@@ -31,7 +31,6 @@
     btop
     git
     gcr
-    jq
   ];
 
   # Secrets shared by every host, decrypted at activation via each host's
@@ -77,7 +76,6 @@
     openssh.authorizedKeys.keys = [
       vars.adminSshKey
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICMJhrfFayLBG+gWtO6oAvgambw5nWWgztiTFEaaaVRH debian@surface"
-      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGygkCljN6uKpdJbHTOQtn8ZnH+wKXDLAwrDFbLrE/65 nixos@nixos"
     ];
   };
 

modules/disko/baremetal.nix

@@ -1,87 +0,0 @@
-{ vars, ... }:
-
-{
-  # ZFS RAID0 (striped, no redundancy) root pool for the bare-metal gui
-  # host — two disks, each contributing its own top-level vdev. disko's
-  # zpool `mode` defaults to "" (plain stripe) when left unset, which is
-  # what gives RAID0 semantics here rather than mirror/raidz.
-  #
-  # Device paths are placeholders until the real hardware profile lands —
-  # fill in vars.guiRootDisk1/guiRootDisk2 (stable /dev/disk/by-id/...
-  # paths, not /dev/sdX) before running disko against real hardware. Swap
-  # is deliberately left out for now — sizing that sensibly needs the
-  # box's actual RAM size, which comes with the hardware profile too.
-  #
-  # Not yet imported anywhere: this awaits the new bare-metal platform
-  # module (alongside modules/boot/efi.nix for systemd-boot, matching
-  # modules/platforms/proxmox.nix's pattern) once the hardware config is
-  # in hand.
-  disko.devices = {
-    disk = {
-      disk1 = {
-        type = "disk";
-        device = vars.guiRootDisk1;
-
-        content = {
-          type = "gpt";
-
-          partitions = {
-            esp = {
-              priority = 1;
-              name = "ESP";
-              size = "512M";
-              type = "EF00";
-
-              content = {
-                type = "filesystem";
-                format = "vfat";
-                mountpoint = "/boot";
-                mountOptions = [ "umask=0077" ];
-              };
-            };
-
-            zfs = {
-              size = "100%";
-
-              content = {
-                type = "zfs";
-                pool = "rpool";
-              };
-            };
-          };
-        };
-      };
-
-      disk2 = {
-        type = "disk";
-        device = vars.guiRootDisk2;
-
-        content = {
-          type = "gpt";
-
-          partitions = {
-            zfs = {
-              size = "100%";
-
-              content = {
-                type = "zfs";
-                pool = "rpool";
-              };
-            };
-          };
-        };
-      };
-    };
-
-    zpool.rpool = {
-      type = "zpool";
-
-      rootFsOptions = {
-        compression = "zstd";
-        "com.sun:auto-snapshot" = "false";
-      };
-      mountpoint = "/";
-      options.ashift = "12";
-    };
-  };
-}

modules/disko/linode.nix

@@ -1,35 +0,0 @@
-_:
-
-{
-  # Linode provisions and sizes these disks itself (via the Linode
-  # dashboard/API) before the OS ever boots, and presents them as whole,
-  # unpartitioned block devices — /dev/sda is the root filesystem directly,
-  # /dev/sdb is swap directly, no partition table on either. Nothing here
-  # should ever repartition or resize them:
-  #   - `destroy = false` skips each disk entirely during disko's destroy
-  #     stage (see disko's disk.destroy option) — no wipefs, ever.
-  #   - the filesystem content type's own create step only runs mkfs if the
-  #     device isn't already formatted (checked via `blkid`), so re-running
-  #     this against an already-provisioned Linode disk is a no-op.
-  disko.devices.disk = {
-    main = {
-      device = "/dev/sda";
-      destroy = false;
-
-      content = {
-        type = "filesystem";
-        format = "ext4";
-        mountpoint = "/";
-      };
-    };
-
-    swap = {
-      device = "/dev/sdb";
-      destroy = false;
-
-      content = {
-        type = "swap";
-      };
-    };
-  };
-}

modules/disko/proxmox.nix

@@ -1,4 +1,4 @@
-{ config, vars, ... }:
+_:
 
 {
   disko.devices = {
@@ -6,16 +6,6 @@
       type = "disk";
       device = "/dev/sda";
 
-      # Only used when building a standalone disk image directly (`nix build
-      # .#nixosConfigurations.<host>.config.system.build.diskoImagesScript`)
-      # rather than formatting a real device — see docs/proxmox-images.md.
-      # imageSize sets the .raw file's total size (root's "100%" below fills
-      # whatever's left after ESP + swap within it); imageName keeps each
-      # host's image distinctly named instead of every proxmox-* host
-      # producing an identical "main.raw".
-      imageSize = vars.proxmoxImageSize;
-      imageName = config.networking.hostName;
-
       content = {
         type = "gpt";
 

modules/docker/mount-data.nix

@@ -1,84 +1,65 @@
 { config, lib, pkgs, vars, ... }:
 
-let
-  # `x-systemd.automount` never works inside a Linux container (LXC
-  # included, regardless of privilege) -- confirmed live on lxc-docker:
-  # systemd logs "Starting of <unit>.automount unsupported" for every
-  # share and never mounts them. Mount eagerly there instead, with
-  # `nofail` so a boot with the NFS server unreachable doesn't hang
-  # (the VM platforms rely on automount itself to get that same
-  # non-blocking behavior, so they don't need `nofail` too).
-  automountOpts = if config.boot.isContainer then [ "nofail" ] else [ "x-systemd.automount" ];
-
-  # A bare hostname here never resolves reliably: systemd-resolved only
-  # ever tries LLMNR for single-label names (never DNS, regardless of any
-  # configured search domain), and a *global* search domain (the first fix
-  # attempted here) backfires worse -- confirmed live on lxc-docker, adding
-  # `networking.search` made systemd-resolved prioritize its domain-matched
-  # but server-less global scope over eth0's correctly-configured one for
-  # every "*.sweet.home" query, silently sending them to public fallback
-  # DNS instead. `resolvectl query --interface=eth0 server.sweet.home`
-  # resolved fine throughout, proving the LAN DNS server was never the
-  # problem -- only the ambient, unqualified device string was. Using the
-  # FQDN directly sidesteps all of that, matching the pattern
-  # ../raspi/mount-data.nix already uses for the same reason.
-  nfsServer = "${vars.nfsServerHost}.${vars.homeDomain}";
-in
 {
   fileSystems = {
-    ${vars.nfsShares.dockerConfig.mountpoint} = {
+    "/mnt/docker/config" = {
-      device = "${nfsServer}:${vars.storageRoot}/${vars.nfsShares.dockerConfig.subpath}";
+      device = "${vars.nfsServerHost}:${vars.storageRoot}/docker/config";
       fsType = "nfs";
 
       options = [
         "nfsvers=4.2"
         "_netdev"
+        "x-systemd.automount"
         "noatime"
-      ] ++ automountOpts;
+      ];
     };
 
-    ${vars.nfsShares.dockerDatabases.mountpoint} = {
+    "/mnt/docker/databases" = {
-      device = "${nfsServer}:${vars.storageRoot}/${vars.nfsShares.dockerDatabases.subpath}";
+      device = "${vars.nfsServerHost}:${vars.storageRoot}/docker/databases";
       fsType = "nfs";
 
       options = [
         "nfsvers=4.2"
         "_netdev"
+        "x-systemd.automount"
         "noatime"
-      ] ++ automountOpts;
+      ];
     };
 
-    ${vars.nfsShares.dockerVolumes.mountpoint} = {
+    "/mnt/docker/volumes" = {
-      device = "${nfsServer}:${vars.storageRoot}/${vars.nfsShares.dockerVolumes.subpath}";
+      device = "${vars.nfsServerHost}:${vars.storageRoot}/docker/volumes";
       fsType = "nfs";
 
       options = [
         "nfsvers=4.2"
         "_netdev"
+        "x-systemd.automount"
         "noatime"
-      ] ++ automountOpts;
+      ];
     };
 
-    ${vars.nfsShares.nextcloudData.mountpoint} = {
+    "/mnt/nextcloud-data" = {
-      device = "${nfsServer}:${vars.storageRoot}/${vars.nfsShares.nextcloudData.subpath}";
+      device = "${vars.nfsServerHost}:${vars.storageRoot}/docker/nextcloud-data";
       fsType = "nfs";
 
       options = [
         "nfsvers=4.2"
         "_netdev"
+        "x-systemd.automount"
         "noatime"
-      ] ++ automountOpts;
+      ];
     };
 
-    ${vars.nfsShares.raspiVolumes.mountpoint} = {
+    "/mnt/raspi-backup" = {
-      device = "${nfsServer}:${vars.storageRoot}/${vars.nfsShares.raspiVolumes.subpath}";
+      device = "${vars.nfsServerHost}:${vars.storageRoot}/raspi/volumes";
       fsType = "nfs";
 
       options = [
         "nfsvers=4.2"
         "_netdev"
+        "x-systemd.automount"
         "noatime"
-      ] ++ automountOpts;
+      ];
     };
   };
 }

modules/hardware-configuration/baremetal.nix

@@ -1,23 +0,0 @@
-# Adapted from the output of `nixos-generate-config`, run from a live GUI
-# ISO boot on the actual gui-host hardware (AMD CPU). fileSystems and
-# swapDevices are deliberately omitted -- the live ISO had no formatted
-# disks to detect, and disko (modules/disko/baremetal.nix) generates both
-# from the declarative zpool layout anyway.
-{ config, lib, pkgs, modulesPath, ... }:
-
-{
-  imports =
-    [
-      (modulesPath + "/installer/scan/not-detected.nix")
-    ];
-
-  boot = {
-    initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
-    initrd.kernelModules = [ ];
-    kernelModules = [ "kvm-amd" ];
-    extraModulePackages = [ ];
-  };
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
-}

modules/hardware-configuration/vm/linode.nix

@@ -33,11 +33,14 @@
     };
   };
 
-  # fileSystems."/" and swapDevices are now owned by disko
+  fileSystems."/" =
-  # (../disko/linode.nix, imported from ../platforms/linode.nix) — same
+    {
-  # /dev/sda root + /dev/sdb swap layout, declared there instead so disko's
+      device = "/dev/sda";
-  # (idempotent, non-destructive — see that file) format/mount scripts stay
+      fsType = "ext4";
-  # in sync with what NixOS actually mounts.
+    };
+
+  swapDevices =
+    [{ device = "/dev/sdb"; }];
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
 }

modules/installer/common.nix

@@ -45,21 +45,151 @@
       disko
     ];
 
-    # Auto-install script, kept as a real, version-controlled shell file at
+    # Write auto-install script to /root
-    # scripts/installer/auto-install.sh rather than an inline Nix string.
+    etc."auto-install.sh" = {
-    # It sources scripts/env.sh itself (for LAN_DOMAIN, same as every other
+      text = ''
-    # script in this repo) rather than relying on Nix-level templating, so
+            #!/run/current-system/sw/bin/bash
-    # it behaves identically whether it's run straight from a git checkout
+            set -eux
-    # or from here -- baking scripts/env.sh in alongside it at a matching
-    # relative path (installer/auto-install.sh -> ../env.sh) is what makes
-    # that resolve correctly in both places.
-    etc = {
-      "nixos-installer/env.sh".source = ../../scripts/env.sh;
 
-      "nixos-installer/installer/auto-install.sh" = {
+            set -euo pipefail
-        source = ../../scripts/installer/auto-install.sh;
+
-        mode = "0755";
+        export FLAKE_BASE_URL="git+https://${vars.lanDomain}/beatzaplenty/nixos.git"
-      };
+
+        echo "Fetching available NixOS hosts from flake..."
+        # Two categories deliberately excluded from the menu:
+        #   lxc-*                 — these build a config.system.build.tarball
+        #                           meant for `pct restore` on Proxmox
+        #                           directly, not an install. Running
+        #                           nixos-install against one here would
+        #                           bind-mount / onto /mnt and then refuse to
+        #                           touch the filesystem it's currently
+        #                           running on — see docs/auto-installer.md.
+        #   installer/proxmox-lxc — these *are* the installer image's own
+        #                           flake targets, not deployable hosts;
+        #                           "installing" one means nixos-install-ing
+        #                           a copy of the installer into itself.
+        mapfile -t options < <(
+          nix eval --json --no-use-registries --no-accept-flake-config --extra-experimental-features "flakes nix-command" \
+            "''${FLAKE_BASE_URL}#nixosConfigurations" \
+            --apply builtins.attrNames \
+          | jq -r '.[]
+              | select(startswith("lxc-") | not)
+              | select(. != "installer")
+              | select(. != "proxmox-lxc")'
+        )
+
+        if [[ ''${#options[@]} -eq 0 ]]; then
+          echo "ERROR: No NixOS hosts found in ''${FLAKE_BASE_URL}#nixosConfigurations" >&2
+          exit 1
+        fi
+
+        echo "Note: lxc-* targets aren't installed this way — build them with"
+        echo "  nix build .#nixosConfigurations.<name>.config.system.build.tarball"
+        echo "and 'pct restore' the result on Proxmox directly. See docs/auto-installer.md."
+
+        echo "Choose the flake profile to install:"
+        select choice in "''${options[@]}"; do
+          if [[ -n "$choice" ]]; then
+            echo "You selected: $choice"
+            break
+          else
+            echo "Invalid selection. Try again."
+          fi
+        done
+
+        echo "Starting install with flake: ''${FLAKE_BASE_URL}#''${choice}"
+
+        # Optional: confirm before proceeding
+        read -rp "Proceed with installation? (y/N): " confirm
+        if [[ ! "$confirm" =~ ^[Yy]$ ]]; then
+          echo "Aborted."
+          exit 1
+        fi
+
+        # A nix-cache host is *the* substituter/remote-builder for every other
+        # host once installed (its own config explicitly excludes itself from
+        # using either — see buildType != "nix-cache" in the nixos flake.nix).
+        # Installing one shouldn't depend on a nix-cache substituter either,
+        # for the same reason — plus in practice "nix-cache" only resolves over
+        # Tailscale, which a fresh installer environment was never connected to
+        # anyway, so it's dead weight even for non-nix-cache installs until
+        # that's sorted out. Override it away here specifically for nix-cache
+        # targets to keep install-time behaviour consistent with run-time.
+        nix_extra_opts=()
+        if [[ "''${choice}" == *-nix-cache ]]; then
+            echo "Installing a nix-cache host — skipping the nix-cache substituter."
+            nix_extra_opts+=(--option substituters "https://cache.nixos.org/")
+        fi
+
+        if nix eval --refresh --json  --extra-experimental-features "flakes nix-command" "''${nix_extra_opts[@]}" "''${FLAKE_BASE_URL}#nixosConfigurations.''${choice}.config.disko.devices.disk.main.device" >/dev/null 2>&1; then
+            disko --mode destroy,format,mount \
+                --flake "''${FLAKE_BASE_URL}#''${choice}" "''${nix_extra_opts[@]}" --yes
+        else
+            # No raw disk to partition — true for every LXC container, which has
+            # no block device visible from inside it, only its already-mounted
+            # root filesystem. nixos-install defaults to installing into /mnt; if
+            # nothing points /mnt at the real root, the new system gets built and
+            # written to a disconnected empty directory, never actually becomes
+            # bootable, and the container silently keeps running this installer
+            # environment forever. Bind-mount / onto /mnt so the install actually
+            # lands on the filesystem this container boots from.
+            echo "Selected host has no Disko configuration — installing in place via bind mount."
+            mount --bind / /mnt
+        fi
+
+        # sops-nix derives this host's decryption key from its own SSH host key
+        # at *activation* time, which runs before systemd would otherwise
+        # generate one on first boot. Without pre-seeding it here, secrets
+        # (including the login password) fail to decrypt on first boot.
+        # Generate the key with scripts/prepare-host-key.sh first.
+        #
+        # Two places a key can come from, checked in order:
+        #   /etc/host-keys  — baked into this image at build time (see
+        #                      modules/installer/host-keys.nix; only present
+        #                      if built with NIXOS_HOST_KEYS_DIR set)
+        #   /root/host-keys — scp'd in manually after boot (older fallback,
+        #                      still supported for images built without keys)
+        mkdir -p /root/host-keys
+        if [[ -f "/etc/host-keys/''${choice}_ssh_host_ed25519_key" ]]; then
+            echo "Found baked-in SSH host key for ''${choice}, installing to target..."
+            install -D -m 0600 "/etc/host-keys/''${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
+            install -D -m 0644 "/etc/host-keys/''${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
+        elif [[ -f "/root/host-keys/''${choice}_ssh_host_ed25519_key" ]]; then
+            echo "Found pre-seeded SSH host key for ''${choice}, installing to target..."
+            install -D -m 0600 "/root/host-keys/''${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
+            install -D -m 0644 "/root/host-keys/''${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
+        else
+            echo "WARNING: no SSH host key found for ''${choice} (checked /etc/host-keys and /root/host-keys)"
+            echo "sops-nix secrets (including the login password) will NOT decrypt on first boot."
+            echo "Run scripts/prepare-host-key.sh for host ''${choice} on your admin workstation first,"
+            echo "then either rebuild this image with NIXOS_HOST_KEYS_DIR set, or scp the result to"
+            echo "/root/host-keys/ on this machine."
+            read -rp "Continue without a pre-seeded key anyway? (y/N): " skip_key
+            if [[ ! "$skip_key" =~ ^[Yy]$ ]]; then
+                echo "Aborted."
+                exit 1
+            fi
+        fi
+
+        mkdir -p /mnt/install-tmp
+        export TMPDIR=/mnt/install-tmp
+
+        nixos-install \
+            --flake "''${FLAKE_BASE_URL}#''${choice}" \
+            "''${nix_extra_opts[@]}" \
+            --no-root-password
+
+
+            rm -rf /mnt/install-tmp
+            # Redundant copy of the host's private key — the real one is now at
+            # /etc/ssh/ssh_host_ed25519_key. Nothing NixOS-managed ever cleans this
+            # up on its own since it was written imperatively, not declaratively.
+            rm -rf /root/host-keys
+            sleep 10
+            reboot
+      '';
+
+      mode = "0755";
     };
   };
 
@@ -73,7 +203,7 @@
   # file-copying/chown.
   programs.bash.loginShellInit = ''
     if [ -n "$PS1" ] && [ ! -e "$HOME/.auto_install_ran" ]; then
-      sudo /etc/nixos-installer/installer/auto-install.sh
+      sudo /etc/auto-install.sh
       touch "$HOME/.auto_install_ran"
     fi
   '';

modules/installer/proxmox-lxc.nix

@@ -0,0 +1,12 @@
+{ modulesPath, ... }:
+
+{
+  imports = [
+    ./common.nix
+    (modulesPath + "/virtualisation/proxmox-lxc.nix")
+  ];
+
+  # LXC has no bootloader
+  boot.loader.grub.enable = false;
+  boot.loader.systemd-boot.enable = false;
+}

modules/networking/wifi.nix

@@ -1,43 +0,0 @@
-{ config, lib, vars, ... }:
-
-{
-  # Prestages a NetworkManager connection profile for vars.wifiSsid so the
-  # host associates on first boot with no manual nmtui/nmcli step. Guarded
-  # on a non-empty SSID so leaving the placeholder blank in variables.nix
-  # is a no-op rather than an empty, broken profile — fill it in once the
-  # network is known.
-  #
-  # The password itself lives in secrets/gui.yaml, not variables.nix --
-  # NetworkManager's ensureProfiles renders `psk = "$WIFI_PASSWORD"`
-  # literally into the store (see nixpkgs' own ensureProfiles example,
-  # which does the same for exactly this reason) and its systemd service
-  # envsubst-expands it from environmentFiles at activation time, so the
-  # real value only ever touches /run (root-only, UMask 0177), never the
-  # Nix store.
-  sops.secrets."wifi-password" = lib.mkIf (vars.wifiSsid != "") {
-    sopsFile = ../../secrets/gui.yaml;
-  };
-
-  sops.templates."wifi-password.env" = lib.mkIf (vars.wifiSsid != "") {
-    content = "WIFI_PASSWORD=${config.sops.placeholder."wifi-password"}";
-  };
-
-  networking.networkmanager.ensureProfiles = lib.mkIf (vars.wifiSsid != "") {
-    environmentFiles = [ config.sops.templates."wifi-password.env".path ];
-
-    profiles.${vars.wifiSsid} = {
-      connection = {
-        id = vars.wifiSsid;
-        type = "wifi";
-      };
-      wifi = {
-        mode = "infrastructure";
-        ssid = vars.wifiSsid;
-      };
-      wifi-security = {
-        key-mgmt = "wpa-psk";
-        psk = "$WIFI_PASSWORD";
-      };
-    };
-  };
-}

modules/nix-cache/client.nix

@@ -3,7 +3,7 @@
 {
   nix.settings = {
     substituters = [
-      "http://${vars.nixCacheHost}.${vars.homeDomain}"
+      "http://${vars.nixCacheHost}"
       "https://cache.nixos.org/"
     ];
     trusted-public-keys = [

modules/nix-cache/remote-builder-client.nix

@@ -1,30 +1,18 @@
 { pkgs, vars, ... }:
 
 {
-  # Authenticate as nixremote using the client host's own default root SSH
+  # Install the remote builder key on each client host (do not commit private keys):
-  # identity (/root/.ssh/id_ed25519) rather than a separately-named key --
+  #   sudo install -d -m 0700 /root/.ssh
-  # matches vars.remoteBuilderAuthorizedKeys, which already authorizes
+  #   sudo install -m 0600 ./nixremote /root/.ssh/nixremote
-  # each host's own default key (one entry per host, not a shared
+  #   sudo ssh -i /root/.ssh/nixremote nixremote@nix-cache nix-store --version
-  # dedicated keypair). If this host doesn't have one yet:
-  #   sudo -u root ssh-keygen -t ed25519 -N '' -f /root/.ssh/id_ed25519
-  #   # then add its .pub to vars.remoteBuilderAuthorizedKeys and rebuild nix-cache
-  #   sudo ssh -i /root/.ssh/id_ed25519 nixremote@nix-cache.sweet.home nix-store --version
-  # Trust nix-cache's SSH host key declaratively so the nix-daemon (root)
-  # can connect the first time without a manual ssh-keyscan/known_hosts
-  # step on every new client.
-  programs.ssh.knownHosts."${vars.nixCacheHost}.${vars.homeDomain}" = {
-    hostNames = [ "${vars.nixCacheHost}.${vars.homeDomain}" ];
-    publicKey = vars.nixCacheHostKey;
-  };
-
   nix = {
     distributedBuilds = true;
 
     buildMachines = [
       {
-        hostName = "${vars.nixCacheHost}.${vars.homeDomain}";
+        hostName = vars.nixCacheHost;
         sshUser = vars.remoteBuilderUser;
-        sshKey = "/root/.ssh/id_ed25519";
+        sshKey = "/root/.ssh/${vars.remoteBuilderUser}";
         inherit (pkgs.stdenv.hostPlatform) system;
         maxJobs = 4;
         speedFactor = 2;

modules/nix-cache/server.nix

@@ -1,26 +1,24 @@
 { config, pkgs, vars, ... }:
 
 {
-  # nix-serve's signing key has to be the *same* key on every host that
+  # Generate the binary cache key pair on the nix-cache host:
-  # ever plays the nix-cache role -- modules/nix-cache/client.nix hardcodes
+  #   sudo install -d -m 0700 /etc/nix
-  # every client's trust in one specific public key ("cache.local-1:..."),
+  #   sudo nix-store --generate-binary-cache-key nix-cache-1 \
-  # so a freshly self-generated key here wouldn't be trusted by anyone.
+  #     /etc/nix/cache-priv.pem \
-  # Managed via sops-nix like every other secret in this repo instead of
+  #     /etc/nix/cache-pub.pem
-  # the old manual `nix-store --generate-binary-cache-key` step -- see
+  #   sudo chmod 0600 /etc/nix/cache-priv.pem
-  # "Binary cache signing key" in docs/nix-cache.md for how to add/rotate
+  #   sudo chmod 0644 /etc/nix/cache-pub.pem
-  # the value in secrets/nix-cache.yaml.
+  #   cat /etc/nix/cache-pub.pem
-  sops.secrets."cache-priv-key".sopsFile = ../../secrets/nix-cache.yaml;
-
   services = {
     nix-serve = {
       enable = true;
-      secretKeyFile = config.sops.secrets."cache-priv-key".path;
+      secretKeyFile = "/etc/nix/cache-priv.pem";
     };
 
     nginx = {
       enable = true;
       recommendedProxySettings = true;
-      virtualHosts."${vars.nixCacheHost}.${vars.homeDomain}" = {
+      virtualHosts.${vars.nixCacheHost} = {
         locations."/" = {
           proxyPass = "http://${config.services.nix-serve.bindAddress}:${toString config.services.nix-serve.port}";
         };
@@ -30,7 +28,7 @@
     openssh.enable = true;
   };
 
-  networking.firewall.allowedTCPPorts = [ vars.ports.nixCacheHttp ];
+  networking.firewall.allowedTCPPorts = [ 80 ];
 
   users.groups.${vars.remoteBuilderUser} = { };
 
@@ -56,6 +54,6 @@
   nix.gc = {
     automatic = true;
     dates = "weekly";
-    options = "--delete-older-than ${vars.nixCacheGcMaxAge}";
+    options = "--delete-older-than 30d";
   };
 }

modules/platforms/baremetal.nix

@@ -1,38 +0,0 @@
-{ ... }:
-
-{
-  imports = [
-    ../hardware-configuration/baremetal.nix
-    ../boot/efi.nix
-    ../disko/baremetal.nix
-    ../services/zfs/enable-service.nix
-  ];
-
-  # Needed for real wifi/bluetooth/GPU firmware blobs and CPU microcode
-  # updates (hardware-configuration/baremetal.nix's amd.updateMicrocode
-  # keys off this) -- irrelevant on the linode/proxmox/lxc platforms,
-  # which are all VMs with no real hardware to load firmware for.
-  hardware.enableRedistributableFirmware = true;
-
-  # AMD GPU: the amdgpu kernel driver autoloads from the PCI ID with no
-  # extra boot.kernelModules entry needed; this is the userspace half --
-  # the dedicated Xorg driver (not just the generic modesetting fallback)
-  # plus Mesa OpenGL/Vulkan (amdgpu/RADV), same firmware blobs as above.
-  # 32-bit support is for compatibility with 32-bit apps/games.
-  services.xserver.videoDrivers = [ "amdgpu" ];
-
-  hardware.graphics = {
-    enable = true;
-    enable32Bit = true;
-  };
-
-  # The systemd-based initrd (default here since this host has a ZFS root --
-  # see modules/disko/baremetal.nix) locks the root account by default, so
-  # sulogin refuses to hand over a shell if something in the initrd (e.g.
-  # the ZFS pool import) fails and it drops to emergency mode -- confirmed
-  # live: it just loops re-entering the target instead of prompting. This
-  # only affects the pre-switch-root initrd shell, not the installed
-  # system's own login, and is worth the tradeoff on a box already reachable
-  # at the physical console.
-  boot.initrd.systemd.emergencyAccess = true;
-}

modules/platforms/linode.nix

@@ -3,7 +3,6 @@
 {
   imports = [
     ../hardware-configuration/vm/linode.nix
-    ../disko/linode.nix
   ];
 
   networking = {

modules/platforms/lxc.nix

@@ -1,44 +1,5 @@
-{ config, lib, modulesPath, flakeTarget, ... }:
+{ lib, modulesPath, ... }:
 
-let
-  # Bakes this exact flake target's pre-generated SSH host key straight
-  # into /etc/ssh/ -- mirrors modules/installer/host-keys.nix's
-  # builtins.getEnv pattern (impure and empty under normal `nix
-  # build`/`nix eval`, so this is a no-op unless explicitly opted into
-  # with NIXOS_HOST_KEYS_DIR=... --impure), but places the key directly
-  # rather than staging it under /etc/host-keys/ for a later manual copy
-  # -- this is the whole system for a `lxc-*` host, built straight to a
-  # pct-restorable tarball with no install step, so there's no later copy
-  # step to stage for.
-  #
-  # Without this, config.system.build.tarball's built-in system just
-  # generates a fresh host key at first boot like any other host would --
-  # but sops-nix derives its decryption key from *this* file, and
-  # .sops.yaml only trusts whatever key scripts/secrets/sync-host-keys.sh already
-  # registered for this exact target name. A freshly-generated key can
-  # never match that, so every secret (including this host's own login)
-  # permanently fails to decrypt. Confirmed live: sops-install-secrets
-  # errored with "Error getting data key: 0 successful groups required,
-  # got 0" -- the container's actual host key's age fingerprint didn't
-  # match the one registered in .sops.yaml at all.
-  hostKeysDirStr = builtins.getEnv "NIXOS_HOST_KEYS_DIR";
-  hasHostKeysDir = hostKeysDirStr != "" && builtins.pathExists hostKeysDirStr;
-  hostKeysDir = /. + hostKeysDirStr;
-
-  # flakeTarget ("${platform}-${buildType}") comes in via specialArgs from
-  # flake.nix's mkTarget -- exactly the name scripts/secrets/sync-host-keys.sh
-  # registers keys under. Deliberately not read back from
-  # config.environment.etc."flake-target" (which is set to the same value)
-  # -- this module also *contributes* to environment.etc below, and a
-  # module reading the merged value of an option it's still defining is a
-  # circular dependency (confirmed: "infinite recursion encountered").
-  privKeyFile = hostKeysDir + "/${flakeTarget}_ssh_host_ed25519_key";
-  pubKeyFile = hostKeysDir + "/${flakeTarget}_ssh_host_ed25519_key.pub";
-  hasKeyForThisTarget =
-    hasHostKeysDir
-    && builtins.pathExists privKeyFile
-    && builtins.pathExists pubKeyFile;
-in
 {
   # LXC containers share the host kernel — Proxmox starts them by exec'ing
   # /sbin/init directly, no bootloader/initrd involved — and Proxmox has its
@@ -58,28 +19,8 @@ in
     # host.nix declares each host's real hostname (networking.hostName);
     # keep that instead of letting Proxmox's ambient container config win.
     manageHostName = true;
-    # Unprivileged by default -- matches how these containers are actually
+    # Unprivileged matches how these containers are actually created.
-    # created (scripts/proxmox/create-proxmox-resource.sh reads this value
+    privileged = false;
-    # back to decide `pct create`'s --unprivileged flag, so the two stay
-    # in sync).
-    #
-    # lxc-docker is the one exception: the kernel's NFS client doesn't set
-    # FS_USERNS_MOUNT, so mounting NFS from inside *any* non-init user
-    # namespace -- which is exactly what an unprivileged container's
-    # UID-mapped root runs in -- is rejected at the VFS layer with EPERM,
-    # no matter what Proxmox's own `mount=nfs;nfs4` container feature
-    # allows at the AppArmor layer (confirmed live: TCP to the NFS server
-    # succeeds, the server's export table matches the container's IP, and
-    # `mount.nfs: Operation not permitted` still fires immediately with no
-    # corresponding denial anywhere in the server's logs -- a kernel-level
-    # rejection, not a network or export-permission one). Keying off
-    # hostName rather than something docker-build-type-specific because
-    # modules/build-types/docker.nix is also composed for linode-docker/
-    # proxmox-docker, which don't import proxmox-lxc.nix at all --setting
-    # this option there would break their eval with "option does not
-    # exist" regardless of any mkIf guard, since mkIf only makes a value
-    # conditional, not whether the option needs to exist somewhere.
-    privileged = config.networking.hostName == "docker";
   };
 
   boot.loader = {
@@ -94,109 +35,4 @@ in
   # for the same reason; it just doesn't disable NetworkManager itself,
   # which modules/common/configuration.nix enables for every host.
   networking.networkmanager.enable = lib.mkForce false;
-
-  environment.etc = lib.mkIf hasKeyForThisTarget {
-    "ssh/ssh_host_ed25519_key" = {
-      source = privKeyFile;
-      mode = "0600";
-    };
-    "ssh/ssh_host_ed25519_key.pub" = {
-      source = pubKeyFile;
-      mode = "0644";
-    };
-  };
-
-  # NixOS's etc activation removes any /etc file that was in the previous
-  # generation's environment.etc but is absent from the current one — even
-  # real (non-symlink) copies.  On every routine nixos-rebuild switch/test that
-  # lacks NIXOS_HOST_KEYS_DIR the key is absent from environment.etc, so it
-  # gets removed as "obsolete".  sops-nix derives its age decryption key from
-  # /etc/ssh/ssh_host_ed25519_key; deletion cascades into every sops secret
-  # failing with "Error getting data key: 0 successful groups required, got 0".
-  #
-  # Fix: two activation scripts that bracket the etc step.
-  #   preserveSshHostKey — no deps, runs before etc — saves the live key to
-  #                        /run (tmpfs) before etc can delete it.
-  #   restoreSshHostKey  — deps=[etc], runs after etc — reinstalls the key via
-  #                        `install` (atomic, sets mode) if etc removed it.
-  #                        The resulting file is not registered in environment.etc
-  #                        for either the previous or current generation, so
-  #                        subsequent rebuilds leave it alone permanently.
-  system.activationScripts.preserveSshHostKey = ''
-    if [ -f /etc/ssh/ssh_host_ed25519_key ]; then
-      cp /etc/ssh/ssh_host_ed25519_key /run/sshd-host-key-preserve.tmp
-      cp /etc/ssh/ssh_host_ed25519_key.pub /run/sshd-host-key-preserve.pub.tmp
-    fi
-  '';
-
-  system.activationScripts.restoreSshHostKey = {
-    deps = [ "etc" ];
-    text = ''
-      if [ ! -f /etc/ssh/ssh_host_ed25519_key ] && [ -f /run/sshd-host-key-preserve.tmp ]; then
-        install -m 0600 /run/sshd-host-key-preserve.tmp /etc/ssh/ssh_host_ed25519_key
-        install -m 0644 /run/sshd-host-key-preserve.pub.tmp /etc/ssh/ssh_host_ed25519_key.pub
-      fi
-      rm -f /run/sshd-host-key-preserve.tmp /run/sshd-host-key-preserve.pub.tmp
-    '';
-  };
-
-  # virtualisation/proxmox-lxc.nix (imported above) registers the Nix
-  # store DB via a systemd service (register-nix-paths) -- it never runs
-  # an activation script at all. Confirmed live this means neither
-  # sops-nix's "for users" secrets (password hashes -- installed by the
-  # activation script itself, not a systemd service, since they need to
-  # exist *before* user creation) nor the user-creation step that
-  # consumes them ever run on a real lxc-* boot. Regular secrets
-  # (nix-serve's key, beszel's token, etc.) work anyway because sops-nix
-  # provides its own systemd service for those.
-  #
-  # A systemd service, not boot.postBootCommands: tried that first (it's
-  # a genuine, generally-invoked hook -- nixos/modules/system/boot/stage-2-init.sh,
-  # which becomes this container's actual /sbin/init, unconditionally
-  # runs it) but switch-to-configuration behaves differently that early in
-  # boot (raw stage-2-init.sh, before systemd itself has even started) --
-  # confirmed live it silently failed to rewrite /etc/shadow from there
-  # even in "test" mode, despite the exact same command working reliably
-  # every time when run post-boot (i.e. as a normal systemd service, which
-  # is what this is). Not fully root-caused why the early context
-  # specifically breaks it; a real systemd service sidesteps needing to.
-  #
-  # /etc/shadow already has PLACEHOLDER entries for every declared user
-  # baked in at build time (part of constructing the system closure).
-  # update-users-groups.pl deliberately never overwrites an *existing*
-  # shadow entry -- a correct safety property in general (don't clobber a
-  # real user's real password on a config rebuild) -- but on a genuine
-  # first boot that only means the real hashedPasswordFile-derived hash
-  # never gets the chance to be applied either, since the placeholder is
-  # already "seen". Safe to clear here specifically: there is no real
-  # password yet to protect on a first boot.
-  #
-  # "test" mode, not "boot": confirmed live "boot" mode aborts partway
-  # through (before rewriting /etc/shadow) on a warning that "/boot" is on
-  # a different filesystem -- a real check for a host with a bootloader to
-  # update, meaningless for a container that has none
-  # (boot.loader.{grub,systemd-boot}.enable are both false above), but it
-  # still aborts the script. "test" runs every activation step without
-  # touching boot-loader state at all.
-  #
-  # ConditionPathExists (systemd-native, not a bash-level check) means
-  # this only ever runs once, on the genuine first boot -- systemd itself
-  # skips even starting it on every later boot once the marker exists.
-  # switch-to-configuration is otherwise the operator's call per this
-  # repo's own safety rules, not something to run on every boot.
-  systemd.services.nixos-lxc-first-boot-activate = {
-    description = "Complete first-boot NixOS activation (users, secrets) for this LXC container";
-    wantedBy = [ "multi-user.target" ];
-    unitConfig.ConditionPathExists = "!/var/lib/nixos-lxc-first-boot-activated";
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-    };
-    script = ''
-      rm -f /etc/shadow
-      /run/current-system/bin/switch-to-configuration test
-      mkdir -p /var/lib
-      touch /var/lib/nixos-lxc-first-boot-activated
-    '';
-  };
 }

modules/pxe-boot/stage-installer-artifacts.nix

@@ -1,32 +1,23 @@
-{ netbootSystem, netbootMinimalSystem, ... }:
+{ netbootSystem, ... }:
 
 let
   # config.system.build.kernel and .netbootRamdisk are directories, not the
   # files themselves — nixpkgs' own system.build.kexecTree does the same
   # ${...}/<file> dereference for the same reason.
-  mkStageRules = { dirName, system }:
+  inherit (netbootSystem.config.system.boot.loader) kernelFile;
-    let
-      inherit (system.config.system.boot.loader) kernelFile;
-      dir = "/srv/pxe/http/${dirName}";
-    in
-    [
-      # Declared here too (not just in build-types/pxe-boot.nix) so this
-      # module's C+ rules don't depend on cross-module list-merge ordering —
-      # tmpfiles' C type needs the target directory to already exist.
-      "d ${dir} 0755 root root -"
-      "C+ ${dir}/${kernelFile} 0644 root root - ${system.config.system.build.kernel}/${kernelFile}"
-      "C+ ${dir}/initrd 0644 root root - ${system.config.system.build.netbootRamdisk}/initrd"
-      "C+ ${dir}/netboot.ipxe 0644 root root - ${system.config.system.build.netbootIpxeScript}/netboot.ipxe"
-    ];
 in
 {
   # Builds this flake's own installer netboot image (the same one
-  # `nix build .#pxe` produces) plus the vanilla NixOS minimal netboot image
+  # `nix build .#pxe` produces) and stages it where menu.ipxe's :nixos
-  # (`nix build .#pxe-minimal`), and stages both where menu.ipxe's
+  # entry expects it, so the pxe-boot host is self-contained — no manual
-  # :auto-installer / :nixos-minimal entries expect them, so the pxe-boot
+  # operator step to populate /srv/pxe/http/nixos after deploy.
-  # host is self-contained — no manual operator step to populate
+  systemd.tmpfiles.rules = [
-  # /srv/pxe/http after deploy.
+    # Declared here too (not just in build-types/pxe-boot.nix) so this
-  systemd.tmpfiles.rules =
+    # module's C+ rules don't depend on cross-module list-merge ordering —
-    mkStageRules { dirName = "auto-installer"; system = netbootSystem; }
+    # tmpfiles' C type needs the target directory to already exist.
-    ++ mkStageRules { dirName = "nixos-minimal"; system = netbootMinimalSystem; };
+    "d /srv/pxe/http/nixos 0755 root root -"
+    "C+ /srv/pxe/http/nixos/${kernelFile} 0644 root root - ${netbootSystem.config.system.build.kernel}/${kernelFile}"
+    "C+ /srv/pxe/http/nixos/initrd 0644 root root - ${netbootSystem.config.system.build.netbootRamdisk}/initrd"
+    "C+ /srv/pxe/http/nixos/netboot.ipxe 0644 root root - ${netbootSystem.config.system.build.netbootIpxeScript}/netboot.ipxe"
+  ];
 }

modules/raspi/mount-data.nix

@@ -1,23 +1,14 @@
-{ config, lib, vars, ... }:
+{ vars, ... }:
 
 {
-  fileSystems.${vars.raspiMountpoint} = {
+  fileSystems."/mnt/raspi" = {
-    device = "${vars.raspberryPiHost}.${vars.tailnetDomain}:${vars.raspiNfsPath}";
+    device = "raspberrypi.${vars.tailnetDomain}:/home/raspi/raspi";
     fsType = "nfs4";
     options = [
       "nofail"
       "_netdev"
       "noatime"
 
-      # Explicitly use NFSv4.2 if supported
-      "nfsvers=4.2"
-    ] ++ lib.optionals (!config.boot.isContainer) [
-      # `x-systemd.automount` never works inside a Linux container (LXC
-      # included) -- confirmed live on lxc-docker: systemd logs "Starting
-      # of <unit>.automount unsupported" and never mounts it. `nofail`
-      # above already keeps boot non-blocking there, so plain eager
-      # mounting is fine.
-
       # Don't mount until first access
       "x-systemd.automount"
 
@@ -26,6 +17,9 @@
 
       # Give the Pi/Tailscale a little time to appear
       "x-systemd.device-timeout=10s"
+
+      # Explicitly use NFSv4.2 if supported
+      "nfsvers=4.2"
     ];
   };
 

modules/tailscale/exit-node.nix

@@ -0,0 +1,12 @@
+{ vars, ... }:
+
+{
+  services.tailscale = {
+    enable = true;
+
+    extraUpFlags = [
+      "--advertise-exit-node"
+      "--advertise-routes=${vars.lanCidr}"
+    ];
+  };
+}

modules/tailscale/subnet-router.nix

@@ -1,15 +0,0 @@
-_:
-
-{
-  imports = [ ./enable-service.nix ];
-
-  services.tailscale = {
-    # Enables the sysctl forwarding settings subnet routers need;
-    # without this, --advertise-routes has no effect.
-    useRoutingFeatures = "server";
-
-    # Lets peers reach this node directly over the tailscale UDP port
-    # instead of relaying through DERP.
-    openFirewall = true;
-  };
-}

modules/tor/enable-relay.nix

@@ -1,35 +0,0 @@
-{ pkgs, vars, ... }:
-
-{
-  services.tor = {
-    enable = true;
-
-    # Opens settings.ORPort (and DirPort, unset here) in the firewall —
-    # see the nixpkgs tor module's own networking.firewall.mkIf block.
-    openFirewall = true;
-
-    relay = {
-      enable = true;
-      # Plain middle/guard relay, not "exit" — relays onion traffic between
-      # other Tor nodes without ever making requests to the public internet
-      # on a user's behalf, avoiding the abuse complaints and legal exposure
-      # an exit node invites.
-      role = "relay";
-    };
-
-    settings.ORPort = vars.ports.torRelayOrPort;
-
-    # Unix control socket at /run/tor/control (GroupWritable, group "tor")
-    # -- what nyx below actually monitors the relay through. Nyx's own
-    # default control-socket path (/var/run/tor/control) resolves to the
-    # same place, so no extra nyx config is needed.
-    controlSocket.enable = true;
-  };
-
-  # Lets the primary user's shell session read/write the control socket
-  # above without being root -- otherwise nyx fails to authenticate against
-  # it at all.
-  users.users.${vars.primaryUser}.extraGroups = [ "tor" ];
-
-  environment.systemPackages = [ pkgs.nyx ];
-}

modules/traefik/rotate-logs.nix

@@ -1,14 +1,14 @@
-{ vars, ... }:
+_:
 
 {
   services.logrotate = {
     enable = true;
 
     settings = {
-      "${vars.nfsShares.dockerVolumes.mountpoint}/traefik-data/logs/*.log" = {
+      "/mnt/docker/volumes/traefik-data/logs/*.log" = {
         daily = true;
-        size = vars.traefikLogRotate.maxSize;
+        size = "100M";
-        rotate = vars.traefikLogRotate.keep;
+        rotate = 20;
         compress = true;
         missingok = true;
         notifempty = true;

prepare.sh

@@ -0,0 +1,30 @@
+#create MBR table
+parted /dev/sda -- mklabel msdos
+#create nixos partition
+parted /dev/sda -- mkpart primary 1MB -8GB
+#set nixos partition to bootable
+parted /dev/sda -- set 1 boot on
+# create swap partition
+parted /dev/sda -- mkpart primary linux-swap -8GB 100%
+
+#format OS partition
+mkfs.ext4 -L nixos /dev/sda1
+#format swap
+mkswap -L swap /dev/sda2
+
+#activate swap
+swapon /dev/sda2
+
+#mount nixos partition
+mount /dev/disk/by-label/nixos /mnt
+export TMPDIR=/mnt/install-tmp
+mkdir -p /mnt/install-tmp
+#Generate config
+#nixos-generate-config --root /mnt/
+
+#copy customised configuration over
+#cp configuration.nix /mnt/etc/nixos/configuration.nix
+
+#nixos-install --no-root-passwd
+
+#reboot

remove-sensetive-info-refactor.md

@@ -0,0 +1,134 @@
+# Spec: Remove Sensitive Information from NixOS Flake
+
+## Goal
+
+Every secret currently readable in plaintext anywhere in this repo (working tree *and* git history) gets removed, replaced with `sops-nix`-managed encrypted references, and rotated. When this is done, the repo should be safe to make public without exposing anything about the systems it configures.
+
+Treat this as three sequential milestones. Do not start git history rewriting (Milestone 3) until Milestones 1 and 2 are fully verified and the flake still builds. This should be its own branch (`refactor/secrets`) until fully verified, then merged.
+
+---
+
+## Milestone 1 — Audit
+
+Before touching anything, produce a complete inventory. Do not guess at scope — grep the whole tree and the whole history.
+
+1. Run a secret scanner across the working tree and full history. Use both, since they catch different things:
+   - `gitleaks detect --source . -v --log-opts="--all"` (scans history too)
+   - `trufflehog git file://. --since-commit=$(git rev-list --max-parents=0 HEAD) --only-verified=false`
+   If neither is installed, add them via a temporary `nix-shell -p gitleaks trufflehog` — don't install anything globally on the host.
+
+2. Manually grep for the categories below, since scanners miss config-specific patterns:
+   - `hashedPassword`, `password`, `initialPassword`, `initialHashedPassword` in any `users.users.*` block
+   - `age.secrets`, `sops.secrets` (if any partial secrets work already exists — check for it)
+   - PSK / `preSharedKey`, `privateKeyFile` inline values (vs. file references) for WireGuard
+   - `authKey`, `apiToken`, `api_key`, `token =`, `secret =` in service modules (Tailscale, Cloudflare, backup tools, etc.)
+   - SSH private key material: search for `BEGIN OPENSSH PRIVATE KEY` / `BEGIN RSA PRIVATE KEY` literals
+   - TLS cert/key pairs committed under e.g. `secrets/`, `certs/`, `pki/`
+   - Real name, personal email, home address, or anything in comments/hostnames that maps a machine to your physical identity or network layout (e.g. hostnames like `wayne-desktop`, static LAN IPs, ISP-identifying info)
+   - `.env` files, `secrets.nix`, `secrets.yaml`, or any file that looks like it was meant to be gitignored but wasn't
+
+3. Produce `secrets-inventory.md` (temporary, delete before finishing) listing: file path, line, secret type, and which host/service it belongs to. This becomes the checklist for Milestone 2 — every row must be either migrated to sops or deleted, with nothing left unaccounted for.
+
+---
+
+## Milestone 2 — Migrate to sops-nix
+
+### 2.1 Set up sops-nix
+
+1. Add the flake input:
+   ```nix
+   sops-nix.url = "github:Mic92/sops-nix";
+   sops-nix.inputs.nixpkgs.follows = "nixpkgs";
+   ```
+2. Import `sops-nix.nixosModules.sops` into each host's module list (or into a shared `common.nix` if all hosts use it).
+3. Generate an age keypair **per host** (not one shared key for everything — a compromised host shouldn't decrypt every other host's secrets):
+   ```
+   nix-shell -p age --run "age-keygen -o /var/lib/sops-nix/key.txt"
+   ```
+   Print the public key (`age-keygen -y`) for each host — you'll need it for `.sops.yaml`.
+4. Also generate one age key for yourself (your admin workstation) so you can edit secrets without needing to SSH into a host: store it at `~/.config/sops/age/keys.txt`, back it up somewhere outside this repo (password manager, offline). **If this key is lost, every secret encrypted with it is unrecoverable — losing the age key is equivalent to losing the secrets.**
+5. Create `.sops.yaml` at the repo root defining creation rules: which age public keys can decrypt which secrets files, keyed by path regex, so e.g. `secrets/hostA.yaml` is decryptable by your admin key + hostA's key, `secrets/hostB.yaml` by your admin key + hostB's key.
+
+### 2.2 Migrate each secret category from the inventory
+
+For each row in `secrets-inventory.md`:
+
+- **Password hashes**: generate hash with `mkpasswd -m sha-512` (or `bcrypt` if your setup wants that), store under `sops.secrets."<name>/hashedPassword"`, reference via `users.users.<name>.hashedPasswordFile = config.sops.secrets."<name>/hashedPassword".path;`. Do not put the *plaintext* password anywhere, only the hash, and only the hash goes into the encrypted sops file.
+- **API tokens / auth keys**: move the raw value into the per-host sops YAML, reference in the module via `config.sops.secrets."<service>/token".path` — most NixOS service modules that take a token also accept a `*File` variant (e.g. `environmentFile`, `tokenFile`); use that instead of passing the value directly.
+- **Private keys / certs**: move the PEM/key content wholesale into a sops secret, output as a file with appropriate `sops.secrets.<name>.path`, `owner`, `mode`, `restartUnits` so the depending service (sshd, wireguard, nginx) reloads when the secret changes.
+- **Personal/identifying info**: this doesn't belong in sops (it's not "secret," it's just information you don't want public). Replace real names/emails with placeholders or move to a small untracked `local.nix` that's `.gitignore`'d and imported conditionally, with a documented template (`local.nix.example`) committed instead.
+
+### 2.3 Verify before moving on
+
+- `nixos-rebuild dry-build --flake .#<host>` succeeds for every host.
+- `sudo nixos-rebuild switch --flake .#<host>` on at least one real machine (or a VM) confirms secrets decrypt and services start.
+- Confirm decrypted secrets land under `/run/secrets/` (not the Nix store — anything placed in `/nix/store` is world-readable by design, so sops-nix's runtime-only placement is the whole point; double check no module accidentally pulls a secret path into a store-built config file).
+- Re-run the grep/scanner sweep from Milestone 1 against the *working tree only* (not history yet) — it should now come back clean.
+
+---
+
+## Milestone 3 — Scrub git history
+
+Do this only after Milestone 2 is merged to your main branch and confirmed working, since it rewrites every commit SHA from the point of the earliest offending commit onward.
+
+**This is destructive and irreversible on your local clone. Back up first:**
+```
+cp -r /path/to/nixos-repo /path/to/nixos-repo-backup-$(date +%F)
+```
+
+1. Install `git-filter-repo` (not the older `git filter-branch` / BFG — filter-repo is the currently maintained, faster, safer tool):
+   ```
+   nix-shell -p git-filter-repo
+   ```
+2. Use the `secrets-inventory.md` list to build a list of literal strings/paths to strip. Two approaches, use both:
+   - Path-based: if whole files were secret (e.g. `secrets.nix`, a `.env`, a private key file), remove them entirely from history:
+     ```
+     git filter-repo --path secrets.nix --path .env --invert-paths
+     ```
+   - Value-based: for secrets embedded inline in files you're keeping (not deleting the whole file), use `--replace-text` with a file listing each literal secret string to replace with `***REMOVED***`:
+     ```
+     git filter-repo --replace-text expressions.txt
+     ```
+3. After filtering, verify: run the Milestone 1 scanners again against full history (`--log-opts="--all"`). They must come back clean.
+4. Force-push the rewritten history:
+   ```
+   git push origin --force --all
+   git push origin --force --tags
+   ```
+5. **Every other clone of this repo (other machines, WSL instances, CI) must be deleted and re-cloned fresh** — a `git pull` against rewritten history will not work cleanly and risks resurrecting the old commits. Don't try to reconcile old clones; throw them away and re-clone.
+6. If this repo has ever been pushed to a public host (GitHub, etc.) or a fork/mirror exists, treat every secret that was ever in history as **permanently compromised regardless of the rewrite** — caches, forks, and Wayback-style archives can retain old commits indefinitely. History scrubbing prevents *future* exposure via `git clone`; it does not undo past exposure.
+
+---
+
+## Milestone 4 — Rotate everything
+
+Because the secrets were exposed in history (even briefly, even in a private repo), the migration is not complete until every credential in the inventory has been **rotated**, not just re-encrypted. Re-encrypting an already-leaked value protects it going forward but doesn't undo the leak.
+
+For each row in the original inventory:
+- Password hashes → change the actual account password, regenerate the hash, update the sops file.
+- API tokens/auth keys → revoke the old token in the issuing service's dashboard (Cloudflare, Tailscale, backup provider, etc.) and generate a new one.
+- SSH/WireGuard private keys → generate new keypairs, update the corresponding public key wherever it's trusted (authorized_keys, peer configs, etc.), retire the old ones.
+- TLS certs → reissue if the private key was exposed.
+
+Keep `secrets-inventory.md` open during this step and check off each row as rotated. Delete the file only once every row is checked off — it should not be committed.
+
+---
+
+## Ongoing prevention
+
+Add a pre-commit hook (or a `nix flake check` step) running `gitleaks protect --staged` so a secret can't be committed again by accident. Document in the repo README (briefly) that new secrets go through `sops <file>` to edit, never as plaintext in a tracked file.
+
+---
+
+## Definition of done
+
+- [ ] Milestone 1 inventory complete and reviewed
+- [ ] All hosts have per-host age keys; admin key backed up outside the repo
+- [ ] Every inventoried secret migrated to sops-nix, referenced via `*File`/`sops.secrets.*.path`, nothing plaintext in the working tree
+- [ ] `nixos-rebuild dry-build` and at least one real `switch` verified per host
+- [ ] Working-tree scanner sweep clean
+- [ ] History rewritten with `git-filter-repo`, force-pushed, full-history scanner sweep clean
+- [ ] All other clones deleted and re-cloned from the rewritten history
+- [ ] Every credential in the original inventory rotated (not just re-encrypted)
+- [ ] Pre-commit secret scanning hook added
+- [ ] `secrets-inventory.md` deleted from the working directory (never committed)

scripts/bump-nixpkgs-release.sh

@@ -1,134 +0,0 @@
-#!/usr/bin/env bash
-# Bumps the NixOS release branch this flake tracks — flake.nix's
-# `nixpkgs.url` and `home-manager.url` — in one place, via targeted
-# substitution of just those two lines. Deliberately does NOT touch any
-# `system.stateVersion` anywhere in the repo: per NixOS's own docs, that
-# value must stay fixed at whatever it was on a host's first install (it
-# pins on-disk data-format defaults, not "which nixpkgs release am I on"),
-# so it's never something a channel bump should follow.
-#
-# scripts/codex-maintenance.sh's own `nixos-25.11` pin (used only to fetch
-# nixpkgs-fmt/statix — see CLAUDE.md) is a separate, independently-versioned
-# reference on purpose: it doesn't have to track the flake's own nixpkgs
-# input, since the tooling just needs to build, not match. Bump it with
-# --tooling if you want it moved too; the default run leaves it alone.
-set -euo pipefail
-
-repo_root="$(cd "$(dirname "$0")/.." && pwd)"
-flake_nix="${repo_root}/flake.nix"
-maintenance_sh="${repo_root}/scripts/codex-maintenance.sh"
-claude_md="${repo_root}/CLAUDE.md"
-
-usage() {
-  cat <<EOF
-Usage: $0 <release> [--tooling <release>]
-
-  <release>            New NixOS release for flake.nix's nixpkgs.url and
-                        home-manager.url, e.g. 26.11
-  --tooling <release>  Also bump scripts/codex-maintenance.sh's separate
-                        nixpkgs-fmt/statix pin (and its mention in
-                        CLAUDE.md) to this release. Independent of the
-                        first argument — pass the same value if you want
-                        both in sync, a different one if you don't.
-
-Examples:
-  $0 26.11
-  $0 26.11 --tooling 26.11
-EOF
-}
-
-release_re='^[0-9]{2}\.(05|11)$'
-
-if [[ $# -eq 0 || "$1" == "-h" || "$1" == "--help" ]]; then
-  usage
-  exit 0
-fi
-
-new_release="$1"
-shift
-
-tooling_release=""
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-  --tooling)
-    tooling_release="${2:?--tooling requires a release argument}"
-    shift 2
-    ;;
-  *)
-    echo "Unknown argument: $1" >&2
-    usage >&2
-    exit 1
-    ;;
-  esac
-done
-
-check_release_format() {
-  local release="$1"
-  if [[ ! "$release" =~ $release_re ]]; then
-    echo "ERROR: '$release' doesn't look like a NixOS release (expected e.g. 26.11)" >&2
-    exit 1
-  fi
-}
-
-check_branch_exists() {
-  local repo_url="$1" branch="$2"
-  echo "Checking '$branch' exists on $repo_url..."
-  if ! git ls-remote --exit-code --heads "$repo_url" "$branch" >/dev/null; then
-    echo "ERROR: branch '$branch' not found on $repo_url. Typo, or not cut yet?" >&2
-    exit 1
-  fi
-}
-
-check_release_format "$new_release"
-
-current_release="$(grep -oE 'nixos-[0-9]{2}\.[0-9]{2}' "$flake_nix" | head -1 | sed 's/^nixos-//')"
-if [[ -z "$current_release" ]]; then
-  echo "ERROR: couldn't find flake.nix's current nixpkgs release" >&2
-  exit 1
-fi
-
-if [[ "$current_release" == "$new_release" ]]; then
-  echo "flake.nix is already on $new_release."
-else
-  echo "Bumping flake.nix's nixpkgs/home-manager release: $current_release -> $new_release"
-  check_branch_exists "https://github.com/NixOS/nixpkgs.git" "nixos-$new_release"
-  check_branch_exists "https://github.com/nix-community/home-manager.git" "release-$new_release"
-
-  sed -i \
-    -e "s|github:NixOS/nixpkgs/nixos-${current_release}|github:NixOS/nixpkgs/nixos-${new_release}|" \
-    -e "s|github:nix-community/home-manager/release-${current_release}|github:nix-community/home-manager/release-${new_release}|" \
-    "$flake_nix"
-
-  echo "Updated:"
-  grep -n "nixos-${new_release}\|release-${new_release}" "$flake_nix"
-fi
-
-if [[ -n "$tooling_release" ]]; then
-  check_release_format "$tooling_release"
-
-  current_tooling_release="$(grep -oE 'nixos-[0-9]{2}\.[0-9]{2}' "$maintenance_sh" | head -1 | sed 's/^nixos-//')"
-
-  if [[ "$current_tooling_release" == "$tooling_release" ]]; then
-    echo "codex-maintenance.sh's tooling pin is already on $tooling_release."
-  else
-    echo "Bumping codex-maintenance.sh's nixpkgs-fmt/statix pin: $current_tooling_release -> $tooling_release"
-    check_branch_exists "https://github.com/NixOS/nixpkgs.git" "nixos-$tooling_release"
-
-    sed -i "s|github:NixOS/nixpkgs/nixos-${current_tooling_release}|github:NixOS/nixpkgs/nixos-${tooling_release}|g" \
-      "$maintenance_sh"
-    sed -i "s|nixos-${current_tooling_release}|nixos-${tooling_release}|g" \
-      "$claude_md"
-
-    echo "Updated:"
-    grep -n "nixos-${tooling_release}" "$maintenance_sh" "$claude_md"
-  fi
-fi
-
-echo
-echo "flake.lock still points at the old input revisions until refreshed. Either:"
-echo "  nix flake update nixpkgs home-manager   # just these two inputs"
-echo "  nix flake update                        # everything — see docs/flake-lock-automation.md"
-echo
-echo "Then run 'bash scripts/codex-maintenance.sh --full-check --dry-run' before"
-echo "committing — a channel bump can shift option defaults across every host,"
-echo "and only --dry-run actually builds anything to catch that."

scripts/codex-maintenance.sh

@@ -1,73 +1,22 @@
 #!/usr/bin/env bash
-# Validation entry point for CI and local/agent review.
-#
-# Default mode (what CI runs on every push/PR): fmt-check, statix, and eval
-# are scoped to files that actually changed against a base ref, plus
-# whichever hosts/packages those changes can affect. This exists because
-# the unscoped sweep below is slow enough to time out CI runners -- see
-# --full-check.
-#
-# --full-check: the historical full sweep (every host, every package,
-# fmt --check ./statix check . over the whole tree). Slow -- minutes, not
-# seconds. CI never passes this; run it locally before a release or after
-# touching modules/common/*, flake.nix, or variables.nix if you want extra
-# confidence beyond what the changed-files scope already covers for those
-# paths (see below).
-#
-# --dry-run: adds `nix build --dry-run --no-link` for whatever scope is
-# active (changed-files scope by default, full scope under --full-check).
-#
-# Per-host/per-package eval and dry-run build calls run concurrently (see
-# scripts/lib/nix-parallel.sh) since they're independent of each other.
-# Concurrency defaults to core count capped by available memory (~1GB/job)
-# rather than plain core count, since each concurrent `nix eval` evaluates a
-# whole NixOS system closure and can OOM a small/memory-constrained CI
-# runner otherwise; override via NIX_PARALLEL_JOBS if a runner has more (or
-# less) room than that estimate assumes.
 set -euo pipefail
 
-script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+export NIX_CONFIG="${NIX_CONFIG:-}
-# shellcheck source=lib/nix-bootstrap.sh
+experimental-features = nix-command flakes
-source "${script_dir}/lib/nix-bootstrap.sh"
+accept-flake-config = false
-# shellcheck source=lib/nix-eval.sh
+warn-dirty = false
-source "${script_dir}/lib/nix-eval.sh"
+"
-# shellcheck source=lib/nix-parallel.sh
-source "${script_dir}/lib/nix-parallel.sh"
 
-repo_root="$(cd "${script_dir}/.." && pwd)"
+MODE="${1:-validate}"
-cd "$repo_root"
 
-full_check=false
+ensure_nix_profile() {
-dry_run=false
+  if [ -f /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh ]; then
-
+    . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
-usage() {
+  elif [ -f "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then
-  cat <<'EOF'
+    . "$HOME/.nix-profile/etc/profile.d/nix.sh"
-Usage: scripts/codex-maintenance.sh [--full-check] [--dry-run]
+  fi
-
-  --full-check  Run the full sweep: fmt-check and statix over the whole
-                repo, eval every host and package. Slow. Never run by CI.
-  --dry-run     Additionally run `nix build --dry-run --no-link` for
-                whatever scope is active.
-
-With neither flag (the CI default), fmt-check/statix/eval are scoped to
-files changed against a base ref (env MAINT_BASE_SHA, else the PR base,
-else HEAD^), plus the hosts/packages those changes can affect.
-EOF
 }
 
-for arg in "$@"; do
-  case "$arg" in
-    --full-check) full_check=true ;;
-    --dry-run) dry_run=true ;;
-    -h|--help) usage; exit 0 ;;
-    *)
-      echo "Unknown argument: $arg" >&2
-      usage >&2
-      exit 1
-      ;;
-  esac
-done
-
 ensure_nix_profile
 
 if ! command -v nix >/dev/null 2>&1; then
@@ -75,6 +24,13 @@ if ! command -v nix >/dev/null 2>&1; then
   exit 127
 fi
 
+hosts_json="$(nix eval --json --no-use-registries --no-accept-flake-config .#nixosConfigurations --apply builtins.attrNames)"
+hosts="$(echo "$hosts_json" | jq -r '.[]')"
+
+echo "Hosts:"
+echo "$hosts"
+
+echo
 echo "Checking for obvious committed secrets..."
 if grep -RInE 'github_pat_|ghp_|access-tokens|hashedPassword[[:space:]]*=' \
   --exclude-dir=.git \
@@ -86,235 +42,28 @@ else
   echo "No obvious token patterns found."
 fi
 
-mapfile -t all_hosts < <(list_flake_targets .)
-mapfile -t all_packages < <(nix eval --json "${NIX_EVAL_FLAGS[@]}" .#packages.x86_64-linux --apply builtins.attrNames | jq -r '.[]')
-
-# host_targets_for_dir <hosts-subdir-name>
-# Prints the nixosConfigurations target names whose hostPath is
-# ./hosts/<dir>/host.nix, derived straight from flake.nix's generatedTargets
-# (one mkTarget { ... } call per line) rather than a hand-maintained table,
-# so it can't drift the way a copied mapping would.
-host_targets_for_dir() {
-  local dir="$1"
-  grep -oE '^[[:space:]]*[A-Za-z0-9_-]+ = mkTarget \{[^}]*hostPath = \./hosts/'"${dir}"'/host\.nix;[^}]*\};' flake.nix \
-    | sed -E 's/^[[:space:]]*([A-Za-z0-9_-]+) = mkTarget.*/\1/' \
-    || true
-}
-
-declare -a changed_files=()
-scope_desc="full repo"
-
-if ! $full_check; then
-  resolve_base_ref() {
-    if [[ -n "${MAINT_BASE_SHA:-}" ]] && git cat-file -e "${MAINT_BASE_SHA}^{commit}" 2>/dev/null; then
-      echo "$MAINT_BASE_SHA"
-      return
-    fi
-    if git rev-parse --verify -q HEAD^ >/dev/null 2>&1; then
-      echo "HEAD^"
-      return
-    fi
-    git hash-object -t tree /dev/null
-  }
-
-  base_ref="$(resolve_base_ref)"
-  echo
-  echo "Changed-files scope: diffing against ${base_ref}"
-  mapfile -t changed_files < <(git diff --name-only --diff-filter=ACMR "$base_ref" -- . | sort -u)
-
-  if [[ ${#changed_files[@]} -eq 0 ]]; then
-    echo "No changed files detected."
-  else
-    printf '  %s\n' "${changed_files[@]}"
-  fi
-  scope_desc="changed files only (base: ${base_ref})"
-fi
-
-# Whole-tree fmt/lint always run under --full-check; otherwise scoped below.
-declare -a changed_nix_files=()
-for f in "${changed_files[@]:-}"; do
-  [[ "$f" == *.nix && -f "$f" ]] && changed_nix_files+=("$f")
-done
-
 echo
 echo "Checking Nix formatting with nixpkgs-fmt..."
-if $full_check; then
+nix run --no-use-registries --no-accept-flake-config github:NixOS/nixpkgs/nixos-25.11#nixpkgs-fmt -- --check .
-  nix run "${NIX_EVAL_FLAGS[@]}" github:NixOS/nixpkgs/nixos-25.11#nixpkgs-fmt -- --check .
-elif [[ ${#changed_nix_files[@]} -gt 0 ]]; then
-  nix run "${NIX_EVAL_FLAGS[@]}" github:NixOS/nixpkgs/nixos-25.11#nixpkgs-fmt -- --check "${changed_nix_files[@]}"
-else
-  echo "No changed .nix files; skipping."
-fi
 
 echo
 echo "Running statix lint..."
-if $full_check; then
+nix run --no-use-registries --no-accept-flake-config github:NixOS/nixpkgs/nixos-25.11#statix -- check .
-  nix run "${NIX_EVAL_FLAGS[@]}" github:NixOS/nixpkgs/nixos-25.11#statix -- check .
-elif [[ ${#changed_nix_files[@]} -gt 0 ]]; then
-  for f in "${changed_nix_files[@]}"; do
-    nix run "${NIX_EVAL_FLAGS[@]}" github:NixOS/nixpkgs/nixos-25.11#statix -- check "$f"
-  done
-else
-  echo "No changed .nix files; skipping."
-fi
-
-# Figure out which hosts/packages this run needs to eval (and, under
-# --dry-run, build). full_check always means "everything"; otherwise a
-# change to flake.nix/flake.lock/variables.nix/modules/common/* (repo-wide
-# inputs) or to any other modules/*.nix outside platforms//build-types
-# (whose blast radius isn't safely inferable from the path alone -- see
-# CLAUDE.md's "Grep modules/build-types/*.nix for each build type's imports
-# list") also falls back to everything, on the same reasoning CLAUDE.md
-# already gives interactive sessions for when to run the full sweep.
-# Anything more targeted -- a host.nix, a platform module, a build-type
-# module -- narrows to just the hosts it can affect.
-declare -A affected_hosts=()
-eval_packages=false
-
-if $full_check; then
-  for h in "${all_hosts[@]}"; do affected_hosts[$h]=1; done
-  eval_packages=true
-else
-  full_fallback=false
-  for f in "${changed_files[@]:-}"; do
-    case "$f" in
-      flake.nix|flake.lock|variables.nix|modules/common/*)
-        full_fallback=true
-        ;;
-    esac
-  done
-
-  if ! $full_fallback; then
-    for f in "${changed_files[@]:-}"; do
-      case "$f" in
-        hosts/*/*)
-          hostdir="${f#hosts/}"
-          hostdir="${hostdir%%/*}"
-          while IFS= read -r t; do
-            [[ -n "$t" ]] && affected_hosts[$t]=1
-          done < <(host_targets_for_dir "$hostdir")
-          ;;
-        modules/platforms/*.nix)
-          platform="$(basename "$f" .nix)"
-          for h in "${all_hosts[@]}"; do
-            [[ "$h" == "${platform}-"* ]] && affected_hosts[$h]=1
-          done
-          ;;
-        modules/build-types/*.nix)
-          buildtype="$(basename "$f" .nix)"
-          for h in "${all_hosts[@]}"; do
-            [[ "$h" == *"-${buildtype}" ]] && affected_hosts[$h]=1
-          done
-          ;;
-        modules/installer/*)
-          # iso.nix (imported by both the "installer" nixosConfigurations
-          # target and netbootSystem, which backs packages.pxe) pulls in
-          # common.nix, so a common.nix change reaches all three.
-          affected_hosts[installer]=1
-          eval_packages=true
-          ;;
-        modules/pxe-boot/*)
-          # stage-installer-artifacts.nix is imported by
-          # modules/build-types/pxe-boot.nix only -- same blast radius as a
-          # build-types/*.nix change, not a packages one.
-          for h in "${all_hosts[@]}"; do
-            [[ "$h" == *"-pxe-boot" ]] && affected_hosts[$h]=1
-          done
-          ;;
-        modules/*)
-          full_fallback=true
-          ;;
-      esac
-    done
-  fi
-
-  if $full_fallback; then
-    echo
-    echo "Changed files affect shared config; falling back to evaluating every host/package."
-    for h in "${all_hosts[@]}"; do affected_hosts[$h]=1; done
-    eval_packages=true
-  fi
-fi
-
-mapfile -t hosts < <(for h in "${!affected_hosts[@]}"; do echo "$h"; done | sort)
 
 echo
-echo "Checking nix-cache host key for drift..."
+echo "Evaluating host toplevel derivations..."
-if bash "${script_dir}/secrets/sync-nix-cache-host-key.sh" --check; then
+for host in $hosts; do
-  :
+  echo "==> $host"
-else
+  nix eval --raw --no-use-registries --no-accept-flake-config ".#nixosConfigurations.${host}.config.system.build.toplevel.drvPath"
-  drift_status=$?
+done
-  if [[ "$drift_status" -eq 2 ]]; then
-    echo "nix-cache unreachable from here -- skipping host-key drift check."
-  else
-    echo "WARNING: nix-cache's host key has drifted from variables.nix (see above)." >&2
-    echo "  Run 'bash scripts/secrets/sync-nix-cache-host-key.sh' to fix." >&2
-  fi
-fi
 
-echo
+if [[ "$MODE" == "dry-run" ]]; then
-if [[ ${#hosts[@]} -eq 0 ]]; then
-  echo "No hosts affected by changed files; skipping host eval."
-else
-  echo "Evaluating host toplevel derivations (${scope_desc}, up to ${NIX_PARALLEL_JOBS} at a time)..."
-  # lxc-* hosts deploy via a directly pct-restore-able tarball instead of
-  # nixos-install (see docs/auto-installer.md); proxmox-* hosts can
-  # alternatively be built as a standalone disk image (see
-  # docs/proxmox-images.md). Both are otherwise-unvalidated buildable
-  # surface, easy to silently break without this.
-  declare -a host_eval_jobs=()
-  for host in "${hosts[@]}"; do
-    host_eval_jobs+=("${host}${NIX_PARALLEL_SEP}.#nixosConfigurations.${host}.config.system.build.toplevel.drvPath")
-    case "$host" in
-      lxc-*)
-        host_eval_jobs+=("${host} (tarball)${NIX_PARALLEL_SEP}.#nixosConfigurations.${host}.config.system.build.tarball.drvPath")
-        ;;
-      proxmox-*)
-        host_eval_jobs+=("${host} (diskoImagesScript)${NIX_PARALLEL_SEP}.#nixosConfigurations.${host}.config.system.build.diskoImagesScript.drvPath")
-        ;;
-    esac
-  done
-  run_nix_parallel host_eval_jobs eval --raw "${NIX_EVAL_FLAGS[@]}"
-fi
-
-echo
-if ! $eval_packages; then
-  echo "No packages affected by changed files; skipping package eval."
-else
-  echo "Evaluating buildable packages (up to ${NIX_PARALLEL_JOBS} at a time)..."
-  declare -a package_eval_jobs=()
-  for pkg in "${all_packages[@]}"; do
-    package_eval_jobs+=("packages.x86_64-linux.${pkg}${NIX_PARALLEL_SEP}.#packages.x86_64-linux.${pkg}")
-  done
-  run_nix_parallel package_eval_jobs eval --raw "${NIX_EVAL_FLAGS[@]}"
-fi
-
-if $dry_run; then
   echo
-  echo "Running dry-run builds for the active scope (up to ${NIX_PARALLEL_JOBS} at a time). This will not create result symlinks."
+  echo "Running dry-run builds for all hosts. This will not create result symlinks."
-  declare -a host_build_jobs=()
+  for host in $hosts; do
-  for host in "${hosts[@]:-}"; do
+    echo "==> Dry-run build: $host"
-    host_build_jobs+=("Dry-run build: ${host}${NIX_PARALLEL_SEP}.#nixosConfigurations.${host}.config.system.build.toplevel")
+    nix build --dry-run --no-link --no-use-registries --no-accept-flake-config ".#nixosConfigurations.${host}.config.system.build.toplevel"
-    case "$host" in
-      lxc-*)
-        host_build_jobs+=("Dry-run build: ${host} (tarball)${NIX_PARALLEL_SEP}.#nixosConfigurations.${host}.config.system.build.tarball")
-        ;;
-      proxmox-*)
-        host_build_jobs+=("Dry-run build: ${host} (diskoImagesScript)${NIX_PARALLEL_SEP}.#nixosConfigurations.${host}.config.system.build.diskoImagesScript")
-        ;;
-    esac
   done
-  run_nix_parallel host_build_jobs build --dry-run --no-link "${NIX_EVAL_FLAGS[@]}"
-
-  if $eval_packages; then
-    echo
-    echo "Running dry-run builds for packages."
-    declare -a package_build_jobs=()
-    for pkg in "${all_packages[@]}"; do
-      package_build_jobs+=("Dry-run build: packages.x86_64-linux.${pkg}${NIX_PARALLEL_SEP}.#packages.x86_64-linux.${pkg}")
-    done
-    run_nix_parallel package_build_jobs build --dry-run --no-link "${NIX_EVAL_FLAGS[@]}"
-  fi
 fi
 
 echo

scripts/codex-setup.sh

@@ -1,11 +1,19 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+export NIX_CONFIG="${NIX_CONFIG:-}
-# shellcheck source=lib/nix-bootstrap.sh
+experimental-features = nix-command flakes
-source "${script_dir}/lib/nix-bootstrap.sh"
+accept-flake-config = false
-# shellcheck source=lib/nix-eval.sh
+warn-dirty = false
-source "${script_dir}/lib/nix-eval.sh"
+"
+
+ensure_nix_profile() {
+  if [ -f /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh ]; then
+    . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
+  elif [ -f "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then
+    . "$HOME/.nix-profile/etc/profile.d/nix.sh"
+  fi
+}
 
 install_nix_if_missing() {
   if command -v nix >/dev/null 2>&1; then
@@ -41,17 +49,6 @@ warn-dirty = false
 build-users-group = nixbld
 EOF
 
-    # The official installer's single-user root path still shells out to
-    # `sudo` to create /nix even though it already knows it's running as
-    # root -- confirmed live against a sudo-less minimal Debian/Proxmox
-    # node, where it fails with "sudo: not found" and prints this exact
-    # mkdir/chown as the manual fix. Pre-create it so that branch of the
-    # installer is skipped entirely.
-    if [ ! -d /nix ]; then
-      mkdir -m 0755 /nix
-      chown root /nix
-    fi
-
     sh <(curl -L https://nixos.org/nix/install) --no-daemon
   else
     sh <(curl -L https://nixos.org/nix/install) --no-daemon
@@ -68,7 +65,6 @@ cat > "$HOME/.config/nix/nix.conf" <<'EOF'
 experimental-features = nix-command flakes
 accept-flake-config = false
 warn-dirty = false
-build-users-group =
 EOF
 
 echo "Nix version:"
@@ -83,6 +79,13 @@ if ! command -v jq >/dev/null 2>&1; then
 fi
 
 echo "Available NixOS hosts:"
-list_flake_targets .
+hosts="$(nix eval --json --no-use-registries --no-accept-flake-config .#nixosConfigurations --apply builtins.attrNames | jq -r '.[]')"
+echo "$hosts"
 
-echo "Codex setup complete. Run bash scripts/codex-maintenance.sh to validate changes."
+echo "Evaluating all host toplevel derivations..."
+for host in $hosts; do
+  echo "==> Evaluating $host"
+  nix eval --raw --no-use-registries --no-accept-flake-config ".#nixosConfigurations.${host}.config.system.build.toplevel.drvPath"
+done
+
+echo "Codex setup complete."

scripts/create-linode-installer-disk.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+#boot to rescue mode
+# set root password
+scp $RESULT_ISO root@$LINODE_IP:/tmp/nixos-auto.iso
+
+#in LISH or ssh to rescue mode
+dd if=/tmp/nixos.iso of=/dev/sda bs=4M status=progress conv=fsync

scripts/env.sh

@@ -1,180 +0,0 @@
-#!/usr/bin/env bash
-# Shared config for scripts/*.sh. Source this instead of hardcoding a
-# second copy of these values in every script:
-#   source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/env.sh"
-# Every variable can still be overridden per-invocation via the
-# environment (e.g. PROXMOX_STORAGE=tank-nvme ./scripts/proxmox/create-proxmox-resource.sh ...)
-# since each one only sets a default if unset.
-
-# Two SSH-reachable Proxmox nodes exist on the LAN:
-#   - pve1.sweet.home      -- production. Real, live VMs/containers.
-#   - pve-test.sweet.home  -- sandbox/test node, for scratch VMs/containers
-#     that don't belong on production.
-#
-# PROXMOX_HOST is what scripts/proxmox/create-proxmox-resource.sh actually
-# targets by default -- overridable per-invocation with --node <hostname>,
-# or per-variable as usual (e.g. PROXMOX_HOST=$PVE_TEST_HOST). It defaults
-# to production, matching this repo's behavior before pve-test existed --
-# see CLAUDE.md's "Two Proxmox nodes" section for the policy on which
-# situations should target which node (in particular: Claude defaults to
-# pve-test, not this variable's own default, unless explicitly told
-# otherwise).
-: "${PVE1_HOST:=pve1.sweet.home}"
-: "${PVE_TEST_HOST:=pve-test.sweet.home}"
-: "${PROXMOX_HOST:=$PVE1_HOST}"
-: "${PROXMOX_SSH_USER:=wayne}"
-
-# Where this flake repo lives on the Proxmox node itself.
-# scripts/proxmox/create-proxmox-resource.sh builds images directly on the node
-# instead of transferring them over the network -- it clones the repo here
-# (from this checkout's own `origin` remote) the first time it doesn't
-# find it, installing build tooling via scripts/codex-setup.sh, then
-# `git pull`s it before every subsequent build.
-: "${PROXMOX_REMOTE_REPO_DIR:=/home/${PROXMOX_SSH_USER}/nixos}"
-
-# Storage pool names -- Proxmox's own stock-install defaults, but this
-# varies a lot by setup (ZFS pool name, custom LVM-thin volume, etc.).
-# Verify with `pvesm status` on the node and correct these if wrong.
-: "${PROXMOX_STORAGE:=local-zfs}"     # VM disks / CT rootfs
-: "${PROXMOX_ISO_STORAGE:=local}"     # uploaded images/ISOs/CT templates
-
-: "${PROXMOX_BRIDGE:=vmbr0}"
-
-# Fallback resource sizing when a script doesn't get --cores/--memory.
-: "${PROXMOX_DEFAULT_CORES:=2}"
-: "${PROXMOX_DEFAULT_MEMORY_MB:=2048}"
-
-# `pct create` (unlike `pct restore`) requires an explicit rootfs size --
-# no backup metadata to infer it from. Matches Proxmox's own GUI default.
-: "${PROXMOX_DEFAULT_LXC_DISK_GB:=8}"
-
-# `pct create --memory` only sets RAM -- swap is a wholly separate
-# parameter that otherwise silently stays at Proxmox's own 512M default
-# regardless of --memory (confirmed: creating with --memory 2048 left
-# swap at 512). create-proxmox-resource.sh defaults --swap to whatever
-# --memory resolves to at runtime rather than a static value here, so it
-# tracks a --memory picked at the CLI too, not just the default above.
-
-# Required for a modern (v247+) systemd guest to actually boot as an
-# unprivileged container: systemd's routine use of nested user namespaces
-# and credential mounts (LoadCredential=, DynamicUser=, etc. -- used even
-# by plain getty units) gets denied by AppArmor's default LXC confinement
-# without these. Confirmed live: without them, every getty unit
-# crash-loops on a denied `/run/credentials/*` mount every ~3s (visible
-# as garbage on the console) and core services like nsncd fail the same
-# way on userns_create; system.build.tarball never finishes activating.
-#
-# mount=nfs;nfs4: without it, AppArmor blanket-denies the `nfs`/
-# `rpc_pipefs` mount syscalls any NFS client share needs -- confirmed
-# live on lxc-docker (which mounts several, see modules/docker/mount-data.nix
-# and modules/raspi/mount-data.nix): `mount: /var/lib/nfs/rpc_pipefs:
-# permission denied`. Harmless to grant on lxc targets that don't mount
-# NFS at all -- it only widens what the container is *allowed* to mount,
-# nothing here forces a mount to happen.
-: "${PROXMOX_DEFAULT_LXC_FEATURES:=nesting=1,keyctl=1,mount=nfs;nfs4}"
-
-export PVE1_HOST PVE_TEST_HOST PROXMOX_HOST PROXMOX_SSH_USER PROXMOX_STORAGE \
-  PROXMOX_ISO_STORAGE PROXMOX_BRIDGE PROXMOX_DEFAULT_CORES \
-  PROXMOX_DEFAULT_MEMORY_MB PROXMOX_DEFAULT_LXC_DISK_GB \
-  PROXMOX_DEFAULT_LXC_FEATURES PROXMOX_REMOTE_REPO_DIR
-
-# Matches variables.nix's nixCacheHost -- update both if it ever changes.
-: "${NIX_CACHE_HOST:=nix-cache}"
-export NIX_CACHE_HOST
-
-# Matches variables.nix's lanDomain (the Gitea host this flake's own repo
-# is served from -- see scripts/installer/auto-install.sh's FLAKE_BASE_URL)
-# -- update both if it ever changes.
-: "${LAN_DOMAIN:=gitea.lan.ddnsgeek.com}"
-export LAN_DOMAIN
-
-# nix_extra_opts: call as a plain statement (NOT inside $(...)/<(...) --
-# that forks a subshell, and the whole point is exporting a decision back
-# into *this* shell) to populate the global NIX_OPTS array with whatever
-# extra `nix`/`nix-shell` CLI options are needed to avoid nix-cache when
-# it's unreachable:
-#   nix_extra_opts
-#   nix build "${NIX_OPTS[@]}" ...
-#
-# Without this, every single `nix eval`/`nix build` call retries each
-# store path against a dead substituter up to 5 times with backoff
-# (confirmed: ~15s+ per lookup even with a short connect-timeout, because
-# nix's own retry count isn't controllable that way), and separately
-# tries it as a remote builder too -- both fail independently, so both
-# are checked.
-#
-# Checked with a single fast `curl`/TCP probe (bypassing nix's retry logic
-# entirely) the first time this is called in a given process, and the
-# result is exported as NIX_EXTRA_OPTS so a script that shells out to
-# another script in this repo (e.g. create-proxmox-resource.sh calling
-# sync-host-keys.sh) reuses the same decision instead of probing twice.
-declare -a NIX_OPTS=()
-
-nix_extra_opts() {
-  if [[ -n "${NIX_EXTRA_OPTS_DECIDED:-}" ]]; then
-    if [[ -n "${NIX_EXTRA_OPTS:-}" ]]; then
-      eval "NIX_OPTS=(${NIX_EXTRA_OPTS})"
-    else
-      NIX_OPTS=()
-    fi
-    return
-  fi
-  export NIX_EXTRA_OPTS_DECIDED=1
-  NIX_OPTS=()
-
-  # Retry a couple of times, 1s apart, before believing either check --
-  # belt-and-suspenders against a genuine multi-second blip (nix-cache
-  # restarting), on top of the fix below. Worst case (~11s total, host
-  # genuinely gone) is still nowhere near the 15s+ *per lookup* nix's own
-  # substituter retries would cost if this check didn't exist at all.
-  local attempt cache_up=0 builder_up=0
-  for attempt in 1 2 3; do
-    if curl --silent --fail --max-time 3 "http://${NIX_CACHE_HOST}/nix-cache-info" >/dev/null 2>&1; then
-      cache_up=1
-      break
-    fi
-    [[ "$attempt" -lt 3 ]] && sleep 1
-  done
-
-  if [[ "$cache_up" -eq 0 ]]; then
-    echo "nix-cache (http://${NIX_CACHE_HOST}) is unreachable -- skipping it (substituter + remote builder) for the rest of this run." >&2
-    NIX_OPTS=(--option substituters "https://cache.nixos.org/" --builders "")
-  else
-    for attempt in 1 2 3; do
-      # `exec 3<>/dev/tcp/...` just opens the fd and returns -- it does NOT
-      # read from it. Confirmed live this is load-bearing, not stylistic:
-      # the previous `cat < /dev/tcp/.../22` blocked forever and always hit
-      # the timeout even against a perfectly healthy nix-cache, because
-      # sshd sends its banner and then holds the connection open waiting
-      # for the client to speak next -- `cat` never sees EOF, so this
-      # check reported "unreachable" unconditionally, 100% of the time,
-      # regardless of whether the remote builder was actually up.
-      if timeout 3 bash -c "exec 3<>/dev/tcp/${NIX_CACHE_HOST}/22" 2>/dev/null; then
-        builder_up=1
-        break
-      fi
-      [[ "$attempt" -lt 3 ]] && sleep 1
-    done
-    if [[ "$builder_up" -eq 0 ]]; then
-      echo "nix-cache's SSH remote builder (nixremote@${NIX_CACHE_HOST}:22) is unreachable -- disabling remote builds for the rest of this run." >&2
-      NIX_OPTS=(--builders "")
-    fi
-  fi
-
-  # `printf '%q '` with a genuinely empty NIX_OPTS still runs one format
-  # pass over a missing argument and yields the literal `'' ` rather than
-  # an empty string (confirmed live) -- a subprocess that later does
-  # `eval "NIX_OPTS=(${NIX_EXTRA_OPTS})"` (the branch above, for e.g.
-  # sync-host-keys.sh reusing this process's decision) would then rebuild
-  # a 1-element array holding an empty string instead of a 0-element
-  # array, and `nix-shell "${NIX_OPTS[@]}" -p <pkg>` chokes on that stray
-  # element as a bogus positional argument. Guard the empty case
-  # explicitly so nix-cache being reachable (NIX_OPTS legitimately empty)
-  # round-trips as truly empty instead.
-  if [[ ${#NIX_OPTS[@]} -gt 0 ]]; then
-    printf -v NIX_EXTRA_OPTS '%q ' "${NIX_OPTS[@]}"
-  else
-    NIX_EXTRA_OPTS=""
-  fi
-  export NIX_EXTRA_OPTS
-}

scripts/installer/auto-install.sh

@@ -1,206 +0,0 @@
-#!/usr/bin/env nix-shell
-#!nix-shell -i bash -p jq disko nixos-install-tools zfs
-# shellcheck shell=bash
-# The only genuinely external tools this script calls directly: `jq`
-# (parsing the `nix eval` host list), `disko`/`nixos-install` (the
-# install itself), and `zpool` (exporting a ZFS root pool before reboot,
-# see the comment above that call below). Everything disko shells out to
-# internally (parted/sgdisk/mkfs.*/zfs/...) is self-contained -- disko's
-# own generated scripts hardcode absolute Nix store paths for those, they
-# don't rely on this script's PATH at all (confirmed by inspecting a
-# generated system.build.formatScript). The built installer image
-# (modules/installer/common.nix, plus the upstream
-# installation-cd-minimal.nix it imports via iso.nix) already has all
-# four in environment.systemPackages, so this nix-shell wrapper is a
-# fast no-op there; it's what makes the script also work standalone
-# (e.g. run directly from a checkout on a stock ISO), where they aren't
-# guaranteed.
-set -eux
-
-set -euo pipefail
-
-# shellcheck source=../env.sh
-source "$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)/env.sh"
-
-export FLAKE_BASE_URL="git+https://${LAN_DOMAIN}/beatzaplenty/nixos.git"
-
-echo "Fetching available NixOS hosts from flake..."
-# Two categories deliberately excluded from the menu:
-#   lxc-*     — these build a config.system.build.tarball meant for
-#               `pct restore` on Proxmox directly, not an install.
-#               Running nixos-install against one here would
-#               bind-mount / onto /mnt and then refuse to touch the
-#               filesystem it's currently running on — see
-#               docs/auto-installer.md.
-#   installer — this *is* the installer image's own flake target,
-#               not a deployable host; "installing" it means
-#               nixos-install-ing a copy of the installer into
-#               itself.
-mapfile -t options < <(
-  nix eval --json --no-use-registries --no-accept-flake-config --extra-experimental-features "flakes nix-command" \
-    "${FLAKE_BASE_URL}#nixosConfigurations" \
-    --apply builtins.attrNames \
-  | jq -r '.[]
-      | select(startswith("lxc-") | not)
-      | select(. != "installer")'
-)
-
-if [[ ${#options[@]} -eq 0 ]]; then
-  echo "ERROR: No NixOS hosts found in ${FLAKE_BASE_URL}#nixosConfigurations" >&2
-  exit 1
-fi
-
-echo "Note: lxc-* targets aren't installed this way — build them with"
-echo "  nix build .#nixosConfigurations.<name>.config.system.build.tarball"
-echo "and 'pct restore' the result on Proxmox directly. See docs/auto-installer.md."
-
-echo "Choose the flake profile to install:"
-select choice in "${options[@]}"; do
-  if [[ -n "$choice" ]]; then
-    echo "You selected: $choice"
-    break
-  else
-    echo "Invalid selection. Try again."
-  fi
-done
-
-echo "Starting install with flake: ${FLAKE_BASE_URL}#${choice}"
-
-# Optional: confirm before proceeding
-read -rp "Proceed with installation? (y/N): " confirm
-if [[ ! "$confirm" =~ ^[Yy]$ ]]; then
-  echo "Aborted."
-  exit 1
-fi
-
-# A nix-cache host is *the* substituter/remote-builder for every other
-# host once installed (its own config explicitly excludes itself from
-# using either — see buildType != "nix-cache" in the nixos flake.nix).
-# Installing one shouldn't depend on a nix-cache substituter either,
-# for the same reason — plus in practice "nix-cache" only resolves over
-# Tailscale, which a fresh installer environment was never connected to
-# anyway, so it's dead weight even for non-nix-cache installs until
-# that's sorted out. Override it away here specifically for nix-cache
-# targets to keep install-time behaviour consistent with run-time.
-nix_extra_opts=()
-if [[ "${choice}" == *-nix-cache ]]; then
-    echo "Installing a nix-cache host — skipping the nix-cache substituter."
-    nix_extra_opts+=(--option substituters "https://cache.nixos.org/")
-fi
-
-# Every host reachable through this menu has a Disko config (lxc-*
-# is filtered out above, and is the only category that doesn't —
-# see docs/auto-installer.md), so this can run unconditionally: no
-# need to probe the flake first and branch on whether Disko applies.
-disko --mode destroy,format,mount \
-    --flake "${FLAKE_BASE_URL}#${choice}" "${nix_extra_opts[@]}" --yes-wipe-all-disks
-
-# sops-nix derives this host's decryption key from its own SSH host key
-# at *activation* time, which runs before systemd would otherwise
-# generate one on first boot. Without pre-seeding it here, secrets
-# (including the login password) fail to decrypt on first boot.
-# Generate the key with scripts/secrets/prepare-host-key.sh first.
-#
-# Two places a key can come from, checked in order:
-#   /etc/host-keys  — baked into this image at build time (see
-#                      modules/installer/host-keys.nix; only present
-#                      if built with NIXOS_HOST_KEYS_DIR set)
-#   /root/host-keys — scp'd in manually after boot (older fallback,
-#                      still supported for images built without keys)
-mkdir -p /root/host-keys
-if [[ -f "/etc/host-keys/${choice}_ssh_host_ed25519_key" ]]; then
-    echo "Found baked-in SSH host key for ${choice}, installing to target..."
-    install -D -m 0600 "/etc/host-keys/${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
-    install -D -m 0644 "/etc/host-keys/${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
-elif [[ -f "/root/host-keys/${choice}_ssh_host_ed25519_key" ]]; then
-    echo "Found pre-seeded SSH host key for ${choice}, installing to target..."
-    install -D -m 0600 "/root/host-keys/${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
-    install -D -m 0644 "/root/host-keys/${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
-else
-    # Third place a key can come from: an arbitrary path the operator
-    # points at interactively (e.g. a USB stick, a mount from another
-    # machine) -- only offered when there's an actual human at the other
-    # end of stdin to ask, never in a non-interactive run.
-    key_copied=0
-    if [[ -t 0 ]]; then
-        echo "No SSH host key found for ${choice} (checked /etc/host-keys and /root/host-keys)."
-        read -rp "Path to a directory containing ${choice}_ssh_host_ed25519_key(.pub) (blank to skip): " key_src_dir
-        if [[ -n "$key_src_dir" && -f "${key_src_dir}/${choice}_ssh_host_ed25519_key" && -f "${key_src_dir}/${choice}_ssh_host_ed25519_key.pub" ]]; then
-            cp "${key_src_dir}/${choice}_ssh_host_ed25519_key" "${key_src_dir}/${choice}_ssh_host_ed25519_key.pub" /root/host-keys/
-            key_copied=1
-        elif [[ -n "$key_src_dir" ]]; then
-            echo "WARNING: ${choice}_ssh_host_ed25519_key(.pub) not found in ${key_src_dir}."
-        fi
-    fi
-
-    if [[ "$key_copied" -eq 1 ]]; then
-        echo "Copied SSH host key for ${choice} from ${key_src_dir}, installing to target..."
-        install -D -m 0600 "/root/host-keys/${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
-        install -D -m 0644 "/root/host-keys/${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
-    else
-        echo "WARNING: no SSH host key found for ${choice} (checked /etc/host-keys and /root/host-keys)"
-        echo "sops-nix secrets (including the login password) will NOT decrypt on first boot."
-        echo "Run scripts/secrets/prepare-host-key.sh for host ${choice} on your admin workstation first,"
-        echo "then either rebuild this image with NIXOS_HOST_KEYS_DIR set, scp the result to"
-        echo "/root/host-keys/ on this machine, or point at it when prompted above."
-        read -rp "Continue without a pre-seeded key anyway? (y/N): " skip_key
-        if [[ ! "$skip_key" =~ ^[Yy]$ ]]; then
-            echo "Aborted."
-            exit 1
-        fi
-    fi
-fi
-
-mkdir -p /mnt/install-tmp
-export TMPDIR=/mnt/install-tmp
-
-nixos-install \
-    --flake "${FLAKE_BASE_URL}#${choice}" \
-    "${nix_extra_opts[@]}" \
-    --no-root-password
-
-
-    rm -rf /mnt/install-tmp
-    # Redundant copy of the host's private key — the real one is now at
-    # /etc/ssh/ssh_host_ed25519_key. Nothing NixOS-managed ever cleans this
-    # up on its own since it was written imperatively, not declaratively.
-    rm -rf /root/host-keys
-
-    # disko's --mode ...,mount left any ZFS root pool imported (that's what
-    # let nixos-install write into /mnt). If we reboot with it still
-    # imported, it isn't just "not exported" -- it's stamped with *this*
-    # live installer environment's hostid, which almost never matches the
-    # target's own networking.hostId (see hosts/*/host.nix; the installer
-    # itself sets none). modules/services/zfs/enable-service.nix and
-    # modules/common/configuration.nix both set boot.zfs.forceImportRoot =
-    # false deliberately (the safe option per that setting's own docs), so
-    # the freshly-installed system's first real boot sees a pool "in use by
-    # another system" and refuses to import it without -f -- which is what
-    # makes boot stall waiting on the ZFS import. Exporting here (a no-op
-    # if the chosen host has no ZFS root, e.g. proxmox-*/linode-*) clears
-    # that in-use state so the next import, from any hostid, succeeds.
-    #
-    # Anything still mounted under /mnt -- nixos-install's own leftover
-    # chroot bind mounts for running the target's activation script
-    # (/mnt/dev, /mnt/proc, /mnt/sys, /mnt/run), and disko's own /mnt/boot
-    # ESP mount (modules/disko/baremetal.nix) -- blocks ZFS from unmounting
-    # its root dataset at /mnt, the same way any nested mount blocks
-    # unmounting its parent. Confirmed live: zpool export failed with
-    # "cannot unmount '/mnt': pool or dataset busy" even after handling the
-    # chroot mounts alone, because /mnt/boot was still mounted too. Because
-    # of this script's `set -e`, that killed the script before it ever
-    # reached reboot, silently defeating the whole point of exporting first.
-    # Unmounting everything under /mnt up front (recursively, so nested
-    # mounts like /mnt/dev/pts come along for free) sidesteps needing to
-    # enumerate every mount disko/nixos-install might leave behind.
-    if mountpoint -q /mnt; then
-        umount -R /mnt
-    fi
-
-    if [[ -n "$(zpool list -H -o name 2>/dev/null)" ]]; then
-        echo "Exporting ZFS pool(s) before reboot..."
-        zpool export -a
-    fi
-
-    sleep 10
-    reboot

scripts/lib/confirm.sh

@@ -1,21 +0,0 @@
-#!/usr/bin/env bash
-# Shared "type X to confirm" prompt for scripts/proxmox/create-proxmox-resource.sh
-# (--modify, and replacing an existing --allow-duplicate-host resource) and
-# scripts/secrets/sync-host-keys.sh (--regenerate-all-keys) -- three destructive
-# confirmations that all work the same way (echo the expected value back
-# exactly), kept in one place so the prompt/comparison logic can't drift.
-# Source alongside env.sh:
-#   source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/lib/confirm.sh"
-#
-# Deliberately does NOT print anything on mismatch or decide exit-vs-return
-# -- callers vary on both (a top-level script exits, a subcommand function
-# returns; wording differs too), so that stays at the call site.
-
-# confirm_typed <expected> <prompt>
-# Prints <prompt> via `read -rp`, then reports (via exit status) whether the
-# typed input matched <expected> exactly.
-confirm_typed() {
-  local expected="$1" prompt="$2" input
-  read -rp "$prompt" input
-  [[ "$input" == "$expected" ]]
-}

scripts/lib/nix-bootstrap.sh

@@ -1,20 +0,0 @@
-#!/usr/bin/env bash
-# Shared Nix bootstrap for scripts/codex-setup.sh and
-# scripts/codex-maintenance.sh: the nix.conf settings both need in effect
-# before a single `nix` command runs (flakes enabled, never honor a flake
-# input's own nixConfig, no "dirty tree" warning spam), plus a helper to
-# pull an already-installed Nix's daemon/profile script onto PATH if it
-# isn't there yet. Source this instead of copying it -- see CLAUDE.md.
-export NIX_CONFIG="${NIX_CONFIG:-}
-experimental-features = nix-command flakes
-accept-flake-config = false
-warn-dirty = false
-"
-
-ensure_nix_profile() {
-  if [ -f /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh ]; then
-    . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
-  elif [ -f "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then
-    . "$HOME/.nix-profile/etc/profile.d/nix.sh"
-  fi
-}

scripts/lib/nix-eval.sh

@@ -1,54 +0,0 @@
-#!/usr/bin/env bash
-# Shared flake-introspection helpers for scripts/*.sh. Source alongside
-# env.sh:
-#   source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/lib/nix-eval.sh"
-#
-# NIX_EVAL_FLAGS: --no-use-registries so a call here never resolves through
-# the user's global flake registry (every call targets this repo's own
-# flake, or an explicit github: ref, not a registry alias); --no-accept-flake-config
-# so a flake input's own nixConfig (e.g. a dependency's substituters) is
-# never honored -- matches accept-flake-config = false already set repo-wide
-# (see lib/nix-bootstrap.sh / CLAUDE.md). Reuse this array rather than
-# retyping the two flags at each call site.
-declare -a NIX_EVAL_FLAGS=(--no-use-registries --no-accept-flake-config)
-
-# list_flake_targets <flake_ref>
-# Prints the attribute names under <flake_ref>#nixosConfigurations, one per
-# line, e.g.:
-#   list_flake_targets .            # from inside the repo
-#   list_flake_targets "$repo_root" # from anywhere
-list_flake_targets() {
-  local flake_ref="$1"
-  nix eval --json "${NIX_EVAL_FLAGS[@]}" \
-    "${flake_ref}#nixosConfigurations" --apply builtins.attrNames \
-  | jq -r '.[]'
-}
-
-# flake_target_hostname <flake_ref> <target>
-# Prints one nixosConfigurations target's config.networking.hostName.
-# Empty (not an error under set -e) if the target doesn't exist or the
-# eval otherwise fails -- callers that need to distinguish "empty" from
-# "eval failed" should check $? themselves instead of relying on this.
-flake_target_hostname() {
-  local flake_ref="$1" target="$2"
-  nix eval --raw "${NIX_EVAL_FLAGS[@]}" \
-    "${flake_ref}#nixosConfigurations.${target}.config.networking.hostName" 2>/dev/null
-}
-
-# flake_target_lxc_privileged <flake_ref> <target>
-# Prints "true" or "false" for one lxc-* target's config.proxmoxLXC.privileged
-# (modules/platforms/lxc.nix is the single source of truth -- e.g.
-# lxc-docker sets this true so it can NFS-mount; every other lxc-* host
-# stays unprivileged). Only meaningful for lxc-* targets -- the option
-# doesn't exist for linode-*/proxmox-* (nixpkgs' proxmox-lxc.nix, which
-# declares it, is only ever imported by modules/platforms/lxc.nix). Empty
-# (not an error under set -e) if the eval fails.
-flake_target_lxc_privileged() {
-  local flake_ref="$1" target="$2"
-  # Not --raw: the option is a Nix boolean, and --raw can only coerce
-  # strings ("cannot coerce a Boolean to a string"). Plain `nix eval`
-  # prints a bare `true`/`false` for a boolean, which is exactly the
-  # string this needs.
-  nix eval "${NIX_EVAL_FLAGS[@]}" \
-    "${flake_ref}#nixosConfigurations.${target}.config.proxmoxLXC.privileged" 2>/dev/null
-}

scripts/lib/nix-parallel.sh

@@ -1,95 +0,0 @@
-#!/usr/bin/env bash
-# Shared parallel-nix-invocation helper for scripts/codex-maintenance.sh.
-# Source alongside nix-eval.sh:
-#   source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/lib/nix-parallel.sh"
-#
-# The per-host/per-package `nix eval`/`nix build --dry-run` calls in
-# codex-maintenance.sh are independent of each other, so running them one at
-# a time leaves most cores idle for most of the sweep -- run_nix_parallel
-# fans a batch of them out across up to NIX_PARALLEL_JOBS processes instead.
-
-# NIX_PARALLEL_JOBS: how many `nix` invocations run_nix_parallel runs at
-# once. Defaults to core count capped by available memory (~1GB/job,
-# floor 1) rather than plain `nproc` -- each concurrent `nix eval` here
-# evaluates a whole NixOS system closure from scratch, and on a small/
-# memory-constrained CI runner, `nproc` concurrent evals can OOM-kill each
-# other (confirmed empirically: on a 4GB/6-core box, 5-6 concurrent evals
-# started getting killed while 3-4 ran clean and were still ~2x faster than
-# serial). Override via env if a given machine/CI runner has room to spare
-# or needs a tighter cap.
-default_nix_parallel_jobs() {
-  local cores mem_avail_kb mem_cap
-  cores="$(nproc 2>/dev/null || echo 4)"
-  mem_avail_kb="$(awk '/^MemAvailable:/ {print $2}' /proc/meminfo 2>/dev/null)"
-  if [[ -z "$mem_avail_kb" ]]; then
-    echo "$cores"
-    return
-  fi
-  mem_cap=$((mem_avail_kb / 1024 / 1024))
-  ((mem_cap < 1)) && mem_cap=1
-  ((mem_cap < cores)) && echo "$mem_cap" || echo "$cores"
-}
-NIX_PARALLEL_JOBS="${NIX_PARALLEL_JOBS:-$(default_nix_parallel_jobs)}"
-
-# Separator between a job's label and its flake attr in the arrays
-# run_nix_parallel takes -- a control character so it can't collide with
-# anything a label or attr path would plausibly contain.
-NIX_PARALLEL_SEP=$'\x1f'
-
-# run_nix_parallel <jobs_array_name> <nix subcommand + flags...>
-#
-# jobs_array_name: name of an already-populated bash array whose entries are
-# "<label>${NIX_PARALLEL_SEP}<attr>" pairs, e.g.
-#   jobs=("proxmox-docker${NIX_PARALLEL_SEP}.#nixosConfigurations.proxmox-docker...drvPath")
-# Remaining args are passed to `nix` before the attr, e.g.:
-#   run_nix_parallel jobs eval --raw "${NIX_EVAL_FLAGS[@]}"
-#   run_nix_parallel jobs build --dry-run --no-link "${NIX_EVAL_FLAGS[@]}"
-#
-# Prints "==> <label>" followed by that job's stdout+stderr for every job,
-# in submission order (not completion order) so a run stays readable and
-# diffable across invocations even though the work itself doesn't finish in
-# that order. Returns non-zero if any job failed, only after every job has
-# finished and been printed -- same "surface everything, then fail" contract
-# a `set -e` caller gets, just parallelized instead of stopping at the first
-# failure.
-run_nix_parallel() {
-  local -n jobs_ref="$1"
-  shift
-  local -a nix_args=("$@")
-
-  local n=${#jobs_ref[@]}
-  [[ $n -eq 0 ]] && return 0
-
-  local tmp_dir
-  tmp_dir="$(mktemp -d)"
-
-  local i=0 running=0
-  for job in "${jobs_ref[@]}"; do
-    local attr="${job#*"${NIX_PARALLEL_SEP}"}"
-    printf '%s\n' "${job%%"${NIX_PARALLEL_SEP}"*}" >"${tmp_dir}/${i}.label"
-    (
-      if nix "${nix_args[@]}" "$attr" >"${tmp_dir}/${i}.out" 2>&1; then
-        echo 0 >"${tmp_dir}/${i}.status"
-      else
-        echo 1 >"${tmp_dir}/${i}.status"
-      fi
-    ) &
-    i=$((i + 1))
-    running=$((running + 1))
-    if ((running >= NIX_PARALLEL_JOBS)); then
-      wait -n
-      running=$((running - 1))
-    fi
-  done
-  wait
-
-  local failed=0 j
-  for ((j = 0; j < n; j++)); do
-    echo "==> $(cat "${tmp_dir}/${j}.label")"
-    cat "${tmp_dir}/${j}.out"
-    [[ "$(cat "${tmp_dir}/${j}.status")" -ne 0 ]] && failed=1
-  done
-
-  rm -rf "$tmp_dir"
-  return $failed
-}

scripts/lib/sops-age.sh

@@ -1,52 +0,0 @@
-#!/usr/bin/env bash
-# Shared sops/age helpers for scripts/secrets/backup-admin-key.sh,
-# scripts/secrets/rotate-admin-key.sh, and scripts/secrets/sync-host-keys.sh -- all three
-# derive an age public key from a private identity file the same way, two
-# of them resolve the same sops/age default key-file path, and two of them
-# run `sops updatekeys` the same way. Kept in one place so they can't drift
-# apart. Source alongside env.sh:
-#   source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/lib/sops-age.sh"
-#
-# Uses NIX_OPTS (an array of extra `nix-shell` options -- see env.sh's
-# nix_extra_opts) if the caller has already set it, same convention as
-# lib/ssh-host-keys.sh. Falls back to no extra options if the caller never
-# sourced env.sh.
-if ! declare -p NIX_OPTS >/dev/null 2>&1; then
-  declare -a NIX_OPTS=()
-fi
-
-# sops/age's own default identity-file resolution order, minus $SOPS_AGE_KEY
-# itself (an inline identity, not a path -- callers that accept it check it
-# separately, before falling back to this).
-: "${DEFAULT_SOPS_AGE_KEY_FILE:=${SOPS_AGE_KEY_FILE:-${XDG_CONFIG_HOME:-$HOME/.config}/sops/age/keys.txt}}"
-
-# age_pubkey_from_identity_file <identity-file>
-# Prints the age public key for a private identity file (age-keygen -y).
-age_pubkey_from_identity_file() {
-  local identity_file="$1"
-  nix-shell "${NIX_OPTS[@]}" -p age --run "age-keygen -y '${identity_file}'"
-}
-
-# sops_yaml_admin_pubkey <sops-yaml-path>
-# Prints .sops.yaml's current &admin age public key, or empty (not an error
-# under set -e) if no such anchor line exists -- callers that need to treat
-# "missing" as fatal check for an empty result themselves.
-sops_yaml_admin_pubkey() {
-  local sops_yaml="$1"
-  grep -E '^  - &admin age1' "$sops_yaml" 2>/dev/null | awk '{print $NF}' || true
-}
-
-# sops_updatekeys <secrets-file> [key-file]
-# Re-encrypts <secrets-file> for .sops.yaml's current recipient set. If
-# <key-file> is given, decrypts with that identity (SOPS_AGE_KEY_FILE)
-# instead of whatever's ambient -- needed when the ambient default key
-# doesn't match yet (e.g. mid-rotation, decrypting with the outgoing key).
-sops_updatekeys() {
-  local secrets_file="$1" key_file="${2:-}"
-  if [[ -n "$key_file" ]]; then
-    SOPS_AGE_KEY_FILE="$key_file" nix-shell "${NIX_OPTS[@]}" -p sops --run \
-      "sops updatekeys --yes '${secrets_file}'"
-  else
-    nix-shell "${NIX_OPTS[@]}" -p sops --run "sops updatekeys --yes '${secrets_file}'"
-  fi
-}

scripts/lib/ssh-host-keys.sh

@@ -1,30 +0,0 @@
-#!/usr/bin/env bash
-# Shared SSH-host-key / age-conversion helpers for scripts/secrets/sync-host-keys.sh
-# and scripts/secrets/prepare-host-key.sh -- both generate the same kind of key
-# (ed25519, no passphrase, the sops-nix age-derivation input) and convert it
-# to an age recipient the same way; kept in one place so the two can't
-# drift apart.
-#
-# Uses NIX_OPTS (an array of extra `nix-shell` options -- see env.sh's
-# nix_extra_opts) if the caller has already set it, so a decision to avoid
-# an unreachable nix-cache is reused here instead of probed again. Falls
-# back to no extra options if the caller never sourced env.sh.
-if ! declare -p NIX_OPTS >/dev/null 2>&1; then
-  declare -a NIX_OPTS=()
-fi
-
-# generate_host_ed25519_key <hostname> <keyfile>
-# Writes <keyfile> and <keyfile>.pub. Caller is responsible for refusing to
-# overwrite an existing keyfile -- this always runs ssh-keygen fresh.
-generate_host_ed25519_key() {
-  local hostname="$1" keyfile="$2"
-  nix-shell "${NIX_OPTS[@]}" -p openssh --run \
-    "ssh-keygen -t ed25519 -N '' -C '${hostname}' -f '${keyfile}'" >/dev/null
-}
-
-# ssh_pubkey_to_age <pubkeyfile>
-# Prints the age public key derived from an ed25519 SSH public key file.
-ssh_pubkey_to_age() {
-  local pubkeyfile="$1"
-  nix-shell "${NIX_OPTS[@]}" -p ssh-to-age --run "ssh-to-age -i '${pubkeyfile}'"
-}

scripts/lib/sync-host-keys-edit-sops.py

@@ -1,180 +0,0 @@
-#!/usr/bin/env python3
-# Companion to scripts/sync-host-keys.sh. Applies a set of additive edits
-# to .sops.yaml via targeted line insertion -- not a full YAML parse and
-# re-serialize -- so every untouched byte of the file is guaranteed to stay
-# exactly as it was (a full round-trip through a generic YAML library was
-# tested and silently reformatted the whole file's indentation style).
-#
-# Reads a JSON edit plan from stdin:
-#   {
-#     "add_keys": [{"host": "lxc-server", "age_key": "age1..."}],
-#     "add_aliases": [{"host": "lxc-server", "basename": "common.yaml"}],
-#     "remove_keys": ["lxc-server"],
-#     "remove_aliases_for_hosts": ["lxc-server"]
-#   }
-# Idempotent: an anchor or alias that's already present/absent is left
-# alone -- adding what's already there, or removing what's already gone,
-# is a no-op rather than an error.
-# Prints a JSON summary of what actually changed to stdout, so the caller
-# knows which secrets/*.yaml files need `sops updatekeys` and which don't.
-import json
-import re
-import sys
-
-KEY_LINE_RE = re.compile(r"^  - &\S+ age1")
-
-
-def add_keys(lines, add_keys):
-    existing_anchors = set()
-    for line in lines:
-        m = re.match(r"^  - &(\S+) age1", line)
-        if m:
-            existing_anchors.add(m.group(1))
-
-    new = [e for e in add_keys if e["host"] not in existing_anchors]
-    if not new:
-        return lines, []
-
-    last_idx = None
-    for i, line in enumerate(lines):
-        if KEY_LINE_RE.match(line):
-            last_idx = i
-    if last_idx is None:
-        print("ERROR: no '  - &<name> age1...' line found under keys: in .sops.yaml", file=sys.stderr)
-        sys.exit(1)
-
-    insert = [f"  - &{e['host']} {e['age_key']}\n" for e in new]
-    lines = lines[: last_idx + 1] + insert + lines[last_idx + 1 :]
-    return lines, [e["host"] for e in new]
-
-
-def add_aliases(lines, add_aliases):
-    changed_files = []
-    for e in add_aliases:
-        host = e["host"]
-        basename = e["basename"]
-        target = "path_regex: secrets/" + basename.replace(".", r"\.") + "$"
-
-        rule_start = None
-        for i, line in enumerate(lines):
-            if target in line:
-                rule_start = i
-                break
-        if rule_start is None:
-            print(
-                f"WARNING: no creation_rule for secrets/{basename} in .sops.yaml "
-                f"(needed by {host}) -- add one manually, then re-run.",
-                file=sys.stderr,
-            )
-            continue
-
-        rule_end = len(lines)
-        for i in range(rule_start + 1, len(lines)):
-            if re.match(r"^  - path_regex:", lines[i]):
-                rule_end = i
-                break
-
-        block = lines[rule_start:rule_end]
-        if any(re.search(r"\*" + re.escape(host) + r"\s*$", line) for line in block):
-            continue  # already present
-
-        last_alias_idx = None
-        last_alias_indent = None
-        for i in range(rule_start, rule_end):
-            m = re.match(r"^(\s*)- \*\S+\s*$", lines[i])
-            if m:
-                last_alias_idx = i
-                last_alias_indent = m.group(1)
-        if last_alias_idx is None:
-            print(
-                f"WARNING: creation_rule for secrets/{basename} has no existing "
-                f"'- *alias' line to anchor the insertion point -- add {host} manually.",
-                file=sys.stderr,
-            )
-            continue
-
-        new_line = f"{last_alias_indent}- *{host}\n"
-        lines = lines[: last_alias_idx + 1] + [new_line] + lines[last_alias_idx + 1 :]
-        changed_files.append(basename)
-    return lines, changed_files
-
-
-def remove_keys(lines, hosts):
-    hosts = set(hosts)
-    removed = []
-    kept = []
-    for line in lines:
-        m = re.match(r"^  - &(\S+) age1", line)
-        if m and m.group(1) in hosts:
-            removed.append(m.group(1))
-            continue
-        kept.append(line)
-    return kept, removed
-
-
-def remove_aliases_for_hosts(lines, hosts):
-    hosts = set(hosts)
-    if not hosts:
-        return lines, []
-
-    changed_files = []
-    result = []
-    current_basename = None
-    current_block_changed = False
-
-    def flush():
-        if current_block_changed and current_basename:
-            changed_files.append(current_basename)
-
-    for line in lines:
-        if re.match(r"^  - path_regex:", line):
-            flush()
-            current_block_changed = False
-            m = re.search(r"path_regex: secrets/(.+)\$", line)
-            current_basename = m.group(1).replace(r"\.", ".") if m else None
-            result.append(line)
-            continue
-
-        if current_basename is not None and any(
-            re.search(r"\*" + re.escape(h) + r"\s*$", line) for h in hosts
-        ):
-            current_block_changed = True
-            continue  # drop this alias line
-
-        result.append(line)
-
-    flush()
-    return result, changed_files
-
-
-def main():
-    sops_path = sys.argv[1]
-    edits = json.load(sys.stdin)
-
-    with open(sops_path) as f:
-        lines = f.readlines()
-
-    lines, added_keys = add_keys(lines, edits.get("add_keys", []))
-    lines, added_alias_files = add_aliases(lines, edits.get("add_aliases", []))
-    lines, removed_keys = remove_keys(lines, edits.get("remove_keys", []))
-    lines, removed_alias_files = remove_aliases_for_hosts(
-        lines, edits.get("remove_aliases_for_hosts", [])
-    )
-
-    with open(sops_path, "w") as f:
-        f.writelines(lines)
-
-    changed_files = sorted(set(added_alias_files) | set(removed_alias_files))
-    json.dump(
-        {
-            "added_keys": added_keys,
-            "removed_keys": removed_keys,
-            "changed_secrets_files": changed_files,
-        },
-        sys.stdout,
-    )
-    print()
-
-
-if __name__ == "__main__":
-    main()

scripts/prepare-host-key.sh

@@ -1,13 +1,9 @@
 #!/usr/bin/env bash
-# Generates a new machine's SSH host key by an arbitrary name, before it
+# Generates a new machine's SSH host key ahead of installing it, so
-# necessarily has a flake target yet -- prints the .sops.yaml snippet to
+# sops-nix has something to derive an age key from before the target
-# add by hand. For any host that already has a flake target,
+# ever boots.
-# scripts/secrets/sync-host-keys.sh <target> does this same job plus the
-# .sops.yaml/key_groups registration and re-encryption automatically; use
-# this script only to pre-generate a key ahead of adding the flake target
-# itself.
 #
-# Why a host key is needed at all: sops-nix derives each host's decryption key from
+# Why this is needed: sops-nix derives each host's decryption key from
 # its own /etc/ssh/ssh_host_ed25519_key at *activation* time, but that
 # activation runs before systemd would otherwise generate this key on
 # first boot (sshd-keygen is a normal systemd service gated behind
@@ -22,17 +18,14 @@
 # new machine.
 set -euo pipefail
 
-repo_root="$(cd "$(dirname "$0")/../.." && pwd)"
+repo_root="$(cd "$(dirname "$0")/.." && pwd)"
-# shellcheck source=../env.sh
-source "${repo_root}/scripts/env.sh"
-# shellcheck source=../lib/ssh-host-keys.sh
-source "${repo_root}/scripts/lib/ssh-host-keys.sh"
 
-hostname="${1:?usage: scripts/secrets/prepare-host-key.sh <hostname>}"
+hostname="${1:?usage: scripts/prepare-host-key.sh <hostname> [path-to-nixos-repo]}"
-sops_yaml="${repo_root}/.sops.yaml"
+nixos_repo="${2:-$repo_root}"
+sops_yaml="${nixos_repo}/.sops.yaml"
 
 if [[ ! -f "$sops_yaml" ]]; then
-  echo "ERROR: $sops_yaml not found — is this script still under nixos/scripts/?" >&2
+  echo "ERROR: $sops_yaml not found. Pass the nixos repo path as the 2nd argument." >&2
   exit 1
 fi
 
@@ -45,10 +38,9 @@ if [[ -f "$keyfile" ]]; then
   exit 1
 fi
 
-nix_extra_opts
+nix-shell -p openssh --run "ssh-keygen -t ed25519 -N '' -C '${hostname}' -f '${keyfile}'" >/dev/null
-generate_host_ed25519_key "$hostname" "$keyfile"
 
-age_pub="$(ssh_pubkey_to_age "${keyfile}.pub")"
+age_pub="$(nix-shell -p ssh-to-age --run "ssh-to-age -i '${keyfile}.pub'")"
 
 cat <<EOF
 
@@ -63,7 +55,7 @@ Generated: ${keyfile}(.pub)
  nix-cache/server.)
 
 === 3. Re-encrypt every secrets file you just added it to ===
-  nix-shell -p sops --run 'sops updatekeys ${repo_root}/secrets/common.yaml'
+  nix-shell -p sops --run 'sops updatekeys ${nixos_repo}/secrets/common.yaml'
 
 === 4. Commit + push this repo so the flake build picks up the new recipient ===
 
@@ -71,8 +63,8 @@ Generated: ${keyfile}(.pub)
   a) Rebuild the installer image with all host-keys/ baked in (see
      docs/auto-installer.md):
        NIXOS_HOST_KEYS_DIR="${keydir}" nix build .#iso --impure
-     (or .#pxe — --impure is required since host-keys/ is gitignored and
+     (or .#lxc / .#pxe / .#all — --impure is required since host-keys/
-     flakes can't see it otherwise)
+     is gitignored and flakes can't see it otherwise)
 
   b) Or, for an image already built without keys, scp it in after boot:
        scp ${keyfile}{,.pub} root@<target-ip>:/root/host-keys/

scripts/proxmox/clone-pve1-to-pve-test.sh

@@ -1,221 +0,0 @@
-#!/usr/bin/env bash
-# Ad hoc clone of a single VM/CT from pve1 (production) to pve-test
-# (sandbox), via vzdump + qmrestore/pct restore -- not a general-purpose
-# backup tool, just a quick "give me a disposable copy of this thing on
-# pve-test" for testing against real-ish data without touching prod.
-#
-# Flow:
-#   1. vzdump the resource on pve1 into its "local" storage (--mode
-#      snapshot by default, so the source keeps running throughout --
-#      see --mode below for when that's not possible).
-#   2. Stream the resulting archive straight from pve1 to pve-test
-#      (ssh pve1 cat ... | ssh pve-test cat > ...) -- this machine is
-#      just the relay, no separate on-disk staging copy here.
-#   3. qmrestore / pct restore it on pve-test under --new-vmid (default:
-#      same VMID as the source -- pve-test is a separate node/cluster, so
-#      no collision unless that VMID is already in use there too).
-#      Always restored with --unique 1 (fresh MAC addresses) since the
-#      source is typically still running on the same LAN -- restoring
-#      with the *same* MAC would put two live guests on the wire with
-#      identical hardware addresses.
-#   4. Delete the vzdump archive from pve1's local storage and the
-#      relayed copy on pve-test, so neither node accumulates ad hoc
-#      backup files from this script. Only the pve1 original is
-#      preserved on any failure after step 1, so a failed
-#      transfer/restore can be retried without re-running the backup.
-#
-# This script's own defaults are pve1 -> pve-test, unlike
-# create-proxmox-resource.sh's --node (which defaults to production) --
-# see CLAUDE.md's "Two Proxmox nodes" section. pve1 is only ever touched
-# here after typing the source VMID back to confirm; pve-test is treated
-# as disposable, matching this repo's usual policy for that node.
-#
-# See --help for the full option list.
-set -euo pipefail
-
-repo_root="$(cd "$(dirname "$0")/../.." && pwd)"
-# shellcheck source=../env.sh
-source "${repo_root}/scripts/env.sh"
-# shellcheck source=../lib/confirm.sh
-source "${repo_root}/scripts/lib/confirm.sh"
-
-usage() {
-  cat <<EOF
-Usage: $0 --vmid <n> [options]
-
-  --vmid <n>              Required: VMID on the source node to clone.
-                           Kind (qemu VM vs LXC CT) is auto-detected.
-  --new-vmid <n>           VMID to restore as on the target node
-                           (default: same as --vmid).
-  --mode snapshot|suspend|stop
-                           vzdump backup mode (default: snapshot -- the
-                           source resource keeps running throughout;
-                           requires snapshot-capable storage, e.g.
-                           ZFS/LVM-thin/Ceph/qcow2). Fall back to
-                           "suspend" (brief pause) or "stop" (source
-                           goes down for the duration) if the source's
-                           storage doesn't support live snapshots --
-                           vzdump's own error will say so.
-  --source-node <host>      (default: \$PVE1_HOST, ${PVE1_HOST})
-  --target-node <host>       (default: \$PVE_TEST_HOST, ${PVE_TEST_HOST})
-  --source-storage <pool>      Where vzdump writes the backup on the
-                               source node (default: local).
-  --target-storage <pool>       Where the restored disk/rootfs lands on
-                               the target node (default: \$PROXMOX_STORAGE, ${PROXMOX_STORAGE}).
-  --keep-backup                  Don't delete the vzdump archive from
-                                 either node afterward (debugging aid).
-  --yes                            Skip the typed VMID confirmation
-                                   before touching the source node.
-  --dry-run                          Print the full plan and skip every
-                                     mutating step (vzdump, transfer,
-                                     restore, delete) and the confirm
-                                     prompt. Still makes read-only SSH
-                                     calls to look up the source kind
-                                     and check the target VMID is free
-                                     -- harmless on either node.
-  -h, --help
-EOF
-}
-
-vmid=""
-new_vmid=""
-mode="snapshot"
-source_node="$PVE1_HOST"
-target_node="$PVE_TEST_HOST"
-source_storage="local"
-target_storage="$PROXMOX_STORAGE"
-keep_backup=0
-skip_confirm=0
-dry_run=0
-
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-  --vmid) vmid="$2"; shift 2 ;;
-  --new-vmid) new_vmid="$2"; shift 2 ;;
-  --mode) mode="$2"; shift 2 ;;
-  --source-node) source_node="$2"; shift 2 ;;
-  --target-node) target_node="$2"; shift 2 ;;
-  --source-storage) source_storage="$2"; shift 2 ;;
-  --target-storage) target_storage="$2"; shift 2 ;;
-  --keep-backup) keep_backup=1; shift ;;
-  --yes) skip_confirm=1; shift ;;
-  --dry-run) dry_run=1; shift ;;
-  -h | --help) usage; exit 0 ;;
-  *) echo "Unknown option: $1" >&2; usage >&2; exit 1 ;;
-  esac
-done
-
-if [[ -z "$vmid" ]]; then
-  echo "ERROR: --vmid is required." >&2
-  usage >&2
-  exit 1
-fi
-if [[ "$mode" != "snapshot" && "$mode" != "suspend" && "$mode" != "stop" ]]; then
-  echo "ERROR: --mode must be snapshot, suspend, or stop." >&2
-  exit 1
-fi
-[[ -z "$new_vmid" ]] && new_vmid="$vmid"
-
-source_target="${PROXMOX_SSH_USER}@${source_node}"
-target_target="${PROXMOX_SSH_USER}@${target_node}"
-
-# No dry-run wrapper needed for the calls below: every mutating step
-# (vzdump, transfer, restore, delete) is reached only after the --dry-run
-# early-exit further down, so a plain `ssh` call is never in the dry-run
-# path.
-
-# --- identify the resource kind on the source node -----------------------
-echo "==> Looking up VMID ${vmid} on ${source_node}..."
-kind=""
-if ssh "$source_target" "qm status ${vmid}" >/dev/null 2>&1; then
-  kind="vm"
-elif ssh "$source_target" "pct status ${vmid}" >/dev/null 2>&1; then
-  kind="lxc"
-else
-  echo "ERROR: VMID ${vmid} doesn't exist on ${source_node} as either a VM or CT." >&2
-  exit 1
-fi
-echo "VMID ${vmid} on ${source_node} is a ${kind}."
-
-# --- refuse to clobber an existing resource on the target node -----------
-if ssh "$target_target" "qm status ${new_vmid}" >/dev/null 2>&1 \
-  || ssh "$target_target" "pct status ${new_vmid}" >/dev/null 2>&1; then
-  echo "ERROR: VMID ${new_vmid} already exists on ${target_node}. Pass --new-vmid" >&2
-  echo "with a free ID, or remove the existing resource there first." >&2
-  exit 1
-fi
-
-echo
-echo "Plan:"
-echo "  source: ${kind} VMID ${vmid} on ${source_node} (storage: ${source_storage}, mode: ${mode})"
-echo "  target: VMID ${new_vmid} on ${target_node} (storage: ${target_storage}, fresh MAC via --unique)"
-[[ "$keep_backup" -eq 1 ]] && echo "  backup archives are kept on both nodes afterward (--keep-backup)"
-
-if [[ "$dry_run" -eq 1 ]]; then
-  echo
-  echo "[dry-run] No backup, transfer, restore, or delete was performed."
-  exit 0
-fi
-
-if [[ "$skip_confirm" -ne 1 ]]; then
-  echo
-  if ! confirm_typed "$vmid" "Type the source VMID (${vmid}) to confirm backing it up from ${source_node}: "; then
-    echo "Cancelled -- input didn't match ${vmid}." >&2
-    exit 1
-  fi
-fi
-
-# --- vzdump on the source node --------------------------------------------
-echo
-echo "==> Backing up VMID ${vmid} on ${source_node} (mode=${mode}, storage=${source_storage})..."
-vzdump_log="$(ssh "$source_target" \
-  "vzdump ${vmid} --mode ${mode} --storage ${source_storage} --compress zstd" 2>&1)" \
-  || {
-    echo "$vzdump_log" >&2
-    echo "ERROR: vzdump failed on ${source_node}." >&2
-    exit 1
-  }
-echo "$vzdump_log"
-
-archive="$(echo "$vzdump_log" | grep -oP "creating vzdump archive '\K[^']+" | tail -n1)"
-if [[ -z "$archive" ]]; then
-  echo "ERROR: couldn't find the archive path in vzdump's output above." >&2
-  exit 1
-fi
-archive_basename="$(basename "$archive")"
-target_tmp_archive="/var/tmp/${archive_basename}"
-echo "Archive: ${archive}"
-
-# Always clean up the relayed copy on the target node, success or failure
-# -- it's only ever a working copy, restored or not.
-cleanup_target_tmp() {
-  if [[ "$keep_backup" -ne 1 ]]; then
-    ssh "$target_target" "rm -f '${target_tmp_archive}'" >/dev/null 2>&1 || true
-  fi
-}
-trap cleanup_target_tmp EXIT
-
-# --- relay the archive from source to target ------------------------------
-echo
-echo "==> Transferring archive to ${target_node}..."
-ssh "$source_target" "cat '${archive}'" | ssh "$target_target" "cat > '${target_tmp_archive}'"
-
-# --- restore on the target node --------------------------------------------
-echo
-echo "==> Restoring as VMID ${new_vmid} on ${target_node} (storage=${target_storage})..."
-if [[ "$kind" == "vm" ]]; then
-  ssh "$target_target" "qmrestore '${target_tmp_archive}' ${new_vmid} --storage ${target_storage} --unique 1"
-else
-  ssh "$target_target" "pct restore ${new_vmid} '${target_tmp_archive}' --storage ${target_storage} --unique 1"
-fi
-
-# --- clean up the source backup now that the restore succeeded -----------
-if [[ "$keep_backup" -ne 1 ]]; then
-  echo
-  echo "==> Deleting backup archive from ${source_node}'s ${source_storage} storage..."
-  ssh "$source_target" "rm -f '${archive}' '${archive}.notes' '${archive}.log'" >/dev/null 2>&1 || true
-fi
-
-echo
-echo "Done. VMID ${new_vmid} (${kind}) is now on ${target_node}, cloned from" \
-  "VMID ${vmid} on ${source_node}."

scripts/proxmox/configure-nix-cache-client.sh

@@ -1,199 +0,0 @@
-#!/usr/bin/env bash
-# Points a non-NixOS Debian machine's Nix install at nix-cache: adds it as
-# a substituter (with cache.nixos.org kept as fallback) and, once the
-# remote-builder private key is installed, as a distributed-build machine
-# too.
-#
-# This is the non-NixOS equivalent of modules/nix-cache/client.nix +
-# modules/nix-cache/remote-builder-client.nix -- those two only apply to
-# hosts built from this flake. A plain Debian box with Nix installed has no
-# NixOS module system to pick that config up, so this edits nix.conf by hand.
-#
-# Two modes depending on who runs it:
-#
-#   root (multi-user / daemon install):
-#     Writes /etc/nix/nix.conf, /etc/ssh/ssh_known_hosts, restarts nix-daemon.
-#     Requires /etc/nix/nix.conf to already exist (i.e. nix-daemon is set up).
-#     Run as: sudo ./configure-nix-cache-client.sh [options]
-#
-#   non-root (single-user install):
-#     Writes ~/.config/nix/nix.conf, ~/.ssh/known_hosts. No daemon to restart.
-#     Run as: ./configure-nix-cache-client.sh [options]
-#
-# The values below mirror variables.nix / modules/nix-cache/client.nix in
-# this repo -- update both if nix-cache is ever rebuilt with a new host
-# key or the cache signing key is rotated (see docs/nix-cache.md).
-#
-# REMOTE_BUILDER_KEY defaults to the running user's default SSH identity
-# (root: /root/.ssh/id_ed25519, other user: ~/.ssh/id_ed25519). That key
-# must be listed in vars.remoteBuilderAuthorizedKeys in this repo and
-# nix-cache rebuilt before remote building works.
-#
-# Usage:
-#   ./configure-nix-cache-client.sh [--dry-run] [--no-remote-builder] [--no-restart]
-#
-# Env overrides (defaults match variables.nix):
-#   NIX_CACHE_HOST, NIX_CACHE_HOST_KEY, REMOTE_BUILDER_USER, REMOTE_BUILDER_KEY
-
-set -euo pipefail
-
-: "${NIX_CACHE_HOST:=nix-cache}"
-: "${NIX_CACHE_HOST_KEY:=ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICuHUxGNH6ei3BZD+EfZs3l4X8uJNcjQiOsM/G4yo4O/ lxc-nix-cache}"
-: "${REMOTE_BUILDER_USER:=nixremote}"
-
-CACHE_PUB_KEY="cache.local-1:usoWYanY3Kpq2+kDIS2nhWoLZiRxanmdysdzqCFBHW4="
-FALLBACK_URL="https://cache.nixos.org/"
-FALLBACK_PUB_KEY="cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
-
-MARKER_BEGIN="# BEGIN nix-cache client config (configure-nix-cache-client.sh)"
-MARKER_END="# END nix-cache client config"
-
-# Mode: root uses system-wide paths and restarts the daemon; non-root uses
-# user-level paths and has no daemon to restart.
-if [[ "$EUID" -eq 0 ]]; then
-  install_mode="multi"
-  NIX_CONF="/etc/nix/nix.conf"
-  KNOWN_HOSTS="/etc/ssh/ssh_known_hosts"
-  : "${REMOTE_BUILDER_KEY:=/root/.ssh/id_ed25519}"
-else
-  install_mode="single"
-  NIX_CONF="${XDG_CONFIG_HOME:-$HOME/.config}/nix/nix.conf"
-  KNOWN_HOSTS="$HOME/.ssh/known_hosts"
-  : "${REMOTE_BUILDER_KEY:=$HOME/.ssh/id_ed25519}"
-fi
-
-dry_run=0
-with_remote_builder=1
-restart_daemon=1
-
-for arg in "$@"; do
-  case "$arg" in
-    --dry-run) dry_run=1 ;;
-    --no-remote-builder) with_remote_builder=0 ;;
-    --no-restart) restart_daemon=0 ;;
-    -h|--help)
-      sed -n '2,37p' "$0"
-      exit 0
-      ;;
-    *)
-      echo "ERROR: unknown argument: $arg" >&2
-      exit 1
-      ;;
-  esac
-done
-
-if ! command -v nix >/dev/null 2>&1; then
-  echo "ERROR: no 'nix' binary on PATH -- install the Nix package manager first." >&2
-  exit 1
-fi
-
-if [[ "$install_mode" == "multi" && ! -f "$NIX_CONF" ]]; then
-  echo "ERROR: $NIX_CONF not found -- expected an existing multi-user Nix install." >&2
-  exit 1
-fi
-
-# Single-user: create the config file if it doesn't exist yet.
-if [[ "$install_mode" == "single" && "$dry_run" -eq 0 ]]; then
-  mkdir -p "$(dirname "$NIX_CONF")"
-  [[ -f "$NIX_CONF" ]] || touch "$NIX_CONF"
-fi
-
-builder_line=""
-if [[ "$with_remote_builder" -eq 1 ]]; then
-  if [[ -f "$REMOTE_BUILDER_KEY" ]]; then
-    case "$(uname -m)" in
-      x86_64) nix_system="x86_64-linux" ;;
-      aarch64) nix_system="aarch64-linux" ;;
-      *)
-        echo "WARNING: unrecognized architecture '$(uname -m)' -- skipping remote builder, keeping substituter config." >&2
-        with_remote_builder=0
-        ;;
-    esac
-    if [[ "$with_remote_builder" -eq 1 ]]; then
-      builder_line="builders = ssh://${REMOTE_BUILDER_USER}@${NIX_CACHE_HOST} ${nix_system} ${REMOTE_BUILDER_KEY} 4 2 big-parallel,kvm,nixos-test,benchmark"
-    fi
-  else
-    echo "WARNING: $REMOTE_BUILDER_KEY not found -- skipping remote builder config (substituter still configured)." >&2
-    echo "  See docs/nix-cache.md 'Remote builder SSH keys' for how to install it, then re-run this script." >&2
-    with_remote_builder=0
-  fi
-fi
-
-block="$(cat <<EOF
-$MARKER_BEGIN
-extra-substituters = http://${NIX_CACHE_HOST} ${FALLBACK_URL}
-extra-trusted-public-keys = ${CACHE_PUB_KEY} ${FALLBACK_PUB_KEY}
-EOF
-)"
-if [[ "$with_remote_builder" -eq 1 ]]; then
-  block="${block}
-builders-use-substitutes = true
-${builder_line}"
-fi
-block="${block}
-$MARKER_END"
-
-echo "== nix.conf block to install ($NIX_CONF) =="
-echo "$block"
-echo "================================"
-
-if [[ "$dry_run" -eq 1 ]]; then
-  echo "(--dry-run: not writing $NIX_CONF)"
-else
-  tmp_conf="$(mktemp)"
-  trap 'rm -f "$tmp_conf"' EXIT
-
-  if grep -qF "$MARKER_BEGIN" "$NIX_CONF"; then
-    awk -v begin="$MARKER_BEGIN" -v end="$MARKER_END" -v block="$block" '
-      $0 == begin { print block; skip = 1; next }
-      $0 == end   { skip = 0; next }
-      skip        { next }
-      { print }
-    ' "$NIX_CONF" > "$tmp_conf"
-  else
-    cp "$NIX_CONF" "$tmp_conf"
-    printf '\n%s\n' "$block" >> "$tmp_conf"
-  fi
-
-  cp "$NIX_CONF" "${NIX_CONF}.bak.$(date +%Y%m%d%H%M%S)"
-  install -m 0644 "$tmp_conf" "$NIX_CONF"
-  echo "Updated $NIX_CONF (backup saved alongside it)."
-fi
-
-if [[ "$with_remote_builder" -eq 1 ]]; then
-  known_hosts_line="${NIX_CACHE_HOST} ${NIX_CACHE_HOST_KEY}"
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "(--dry-run: would ensure this line is present in $KNOWN_HOSTS)"
-    echo "  $known_hosts_line"
-  else
-    mkdir -p "$(dirname "$KNOWN_HOSTS")"
-    touch "$KNOWN_HOSTS"
-    if ! grep -qF "$known_hosts_line" "$KNOWN_HOSTS" 2>/dev/null; then
-      echo "$known_hosts_line" >> "$KNOWN_HOSTS"
-      echo "Added nix-cache's SSH host key to $KNOWN_HOSTS."
-    fi
-  fi
-fi
-
-# Only restart the daemon for multi-user installs -- single-user has no daemon.
-if [[ "$dry_run" -eq 0 && "$restart_daemon" -eq 1 && "$install_mode" == "multi" ]]; then
-  if command -v systemctl >/dev/null 2>&1 && systemctl is-active --quiet nix-daemon 2>/dev/null; then
-    systemctl restart nix-daemon
-    echo "Restarted nix-daemon to pick up the new config."
-  else
-    echo "nix-daemon not managed by systemd (or not running) -- restart it manually to pick up the new config."
-  fi
-fi
-
-cat <<EOF
-
-Done. Verify with:
-  curl http://${NIX_CACHE_HOST}/nix-cache-info
-  nix show-config | grep -E 'substituters|trusted-public-keys|builders'
-EOF
-if [[ "$with_remote_builder" -eq 1 ]]; then
-  cat <<EOF
-  ssh -i ${REMOTE_BUILDER_KEY} ${REMOTE_BUILDER_USER}@${NIX_CACHE_HOST} nix-store --version
-  nix build nixpkgs#hello -L
-EOF
-fi

scripts/proxmox/create-proxmox-resource.sh

@@ -1,860 +0,0 @@
-#!/usr/bin/env bash
-# Creates new Proxmox VMs/LXC containers from this flake, and reconfigures
-# existing ones -- the manual workflows in docs/proxmox-images.md (VM) and
-# docs/auto-installer.md's "LXC hosts" section (container), automated.
-#
-# Images are built directly on the Proxmox node (PROXMOX_REMOTE_REPO_DIR /
-# --remote-repo-dir in scripts/env.sh), not on whatever machine runs this
-# script -- there's no multi-gigabyte image to transfer afterward. The first
-# time a node doesn't have that repo path yet, it's bootstrapped: cloned from
-# this checkout's own `origin` remote, then scripts/codex-setup.sh installs
-# the build tooling (Nix, etc.). Every run after that just `git pull`s it and
-# copies over the locally-managed host-keys/ (gitignored, so a git pull
-# alone wouldn't carry it) before building.
-#
-# --node (default: $PROXMOX_HOST, see scripts/env.sh) picks which of the two
-# LAN Proxmox nodes this runs against: production, pve1.sweet.home
-# ($PVE1_HOST, PROXMOX_HOST's own default), or the sandbox node,
-# pve-test.sweet.home ($PVE_TEST_HOST) -- pass --node "$PVE_TEST_HOST" (or
-# set PROXMOX_HOST=$PVE_TEST_HOST) to target the sandbox instead. See
-# CLAUDE.md's "Two Proxmox nodes" section: an agent session should default
-# to pve-test and only touch pve1 when the operator has explicitly said so
-# for the current task -- this script itself doesn't enforce that (its own
-# default is production, matching this repo's behavior before pve-test
-# existed), it's a policy for whoever/whatever is driving it.
-#
-# Usage:
-#   scripts/proxmox/create-proxmox-resource.sh --type lxc|vm --host <name> [options]
-#   scripts/proxmox/create-proxmox-resource.sh --type lxc|vm --list
-#   scripts/proxmox/create-proxmox-resource.sh --modify --vmid <n> [--cores N] [--memory MB] [--grow-disk GB]
-#
-# SAFETY:
-#   - The default (create) mode only ever creates a NEW resource -- it
-#     refuses to run if the target VMID already exists on the node, or if
-#     a VM/CT identified as --host already exists under any other VMID
-#     (checked live against the node; --allow-duplicate-host overrides).
-#   - --allow-duplicate-host distinguishes an exact match (same --type
-#     *and* --host, e.g. re-running --type lxc --host docker while an
-#     lxc-docker container already exists -- almost always a redeploy of
-#     the same target to pick up a rebuilt image) from a cross-type match
-#     (a different platform sharing the same host identity, e.g. a
-#     proxmox-docker VM coexisting with lxc-docker). Only the exact match
-#     is destroyed and replaced, after typing the hostname back to
-#     confirm (outside --dry-run) -- a cross-type match is always left
-#     untouched, matching-or-not.
-#   - --modify only ever touches a resource you name explicitly via
-#     --vmid, shows exactly what will change first, and (outside
-#     --dry-run) always requires typing that VMID back to confirm before
-#     anything is sent to the node. There is no bulk/implicit modify.
-#   - Outside of --allow-duplicate-host's exact-match replace above,
-#     neither mode can start/stop/delete a resource.
-#
-# See --help for the full option list.
-set -euo pipefail
-
-repo_root="$(cd "$(dirname "$0")/../.." && pwd)"
-# shellcheck source=../env.sh
-source "${repo_root}/scripts/env.sh"
-# shellcheck source=../lib/nix-eval.sh
-source "${repo_root}/scripts/lib/nix-eval.sh"
-# shellcheck source=../lib/confirm.sh
-source "${repo_root}/scripts/lib/confirm.sh"
-
-sync_keys="${repo_root}/scripts/secrets/sync-host-keys.sh"
-
-usage() {
-  cat <<EOF
-Usage: $0 --type lxc|vm --host <name> [options]      (create)
-       $0 --type lxc|vm --list                        (list --host values)
-       $0 --modify --vmid <n> [options]                (reconfigure)
-
-Create mode (default):
-  --type lxc|vm        lxc = container, built as a CT template tarball.
-                        vm  = VM, built as a Disko .raw disk image (UEFI/OVMF).
-  --host <name>         Which host identity to deploy -- matches
-                        config.networking.hostName (server, docker,
-                        nix-cache, nixos, pxe-boot, nix-minimal). Use
-                        --list to see what's available for --type.
-  --name <name>          Proxmox display name/hostname (default: --host's
-                          value, e.g. nix-cache -- for lxc this becomes the
-                          guest's real networking.hostName too, since
-                          proxmoxLXC.manageHostName pulls it from Proxmox's
-                          own container config, so it must match host.nix
-                          regardless of build type)
-  --vmid <n>              Numeric VMID (default: next free, via
-                          \`pvesh get /cluster/nextid\` on the node).
-                          Refuses to run if this ID already exists.
-  --disk-size <GB>           lxc only: rootfs size for \`pct create\`
-                              (default: \$PROXMOX_DEFAULT_LXC_DISK_GB, ${PROXMOX_DEFAULT_LXC_DISK_GB}).
-  --image <path>              Use this local image/tarball (uploaded to the
-                              node via scp) instead of checking the node /
-                              building one there from the flake.
-  --force-rebuild                Skip the "does the node already have this
-                                  image" check -- always build fresh and
-                                  overwrite what's there.
-  --remote-repo-dir <path>       Where this flake repo lives (or gets
-                                  cloned) on the node, and is built from
-                                  (default: \$PROXMOX_REMOTE_REPO_DIR, ${PROXMOX_REMOTE_REPO_DIR}).
-  --allow-duplicate-host        Required if a VM/CT identified as --host
-                                already exists on the node (checked live via
-                                qm/pct, not any file in this repo) --
-                                otherwise refused, since it'd share that
-                                host's hostName/hostId. An existing resource
-                                of this *same* --type (e.g. re-running --type
-                                lxc --host docker over an existing lxc-docker)
-                                is destroyed and replaced, after confirming --
-                                a different --type sharing the same --host
-                                (e.g. a proxmox-docker VM) is always left
-                                untouched.
-
-Modify mode (reconfigure an EXISTING resource -- requires --modify):
-  --modify                Switch to modify mode.
-  --vmid <n>                Required: which existing resource to change.
-                            Type/VM-vs-CT is auto-detected on the node.
-  --grow-disk <GB>            Grow the primary disk by this many GB
-                              (qm/pct resize; Proxmox only supports
-                              growing, never shrinking, an existing disk).
-  At least one of --cores / --memory / --grow-disk is required. Always
-  prints the current -> new values and requires typing the VMID back to
-  confirm, even outside --dry-run.
-
-Shared:
-  --cores <n>              create: default \$PROXMOX_DEFAULT_CORES (${PROXMOX_DEFAULT_CORES}).
-                            modify: omit to leave unchanged.
-  --memory <MB>              create: default \$PROXMOX_DEFAULT_MEMORY_MB (${PROXMOX_DEFAULT_MEMORY_MB}).
-                              modify: omit to leave unchanged.
-  --swap <MB>                 lxc only, create time: \`--memory\` doesn't
-                              touch swap -- it silently stays at Proxmox's
-                              own 512M default otherwise. (default: matches
-                              whatever --memory resolves to)
-  --storage <pool>              (default: \$PROXMOX_STORAGE, ${PROXMOX_STORAGE})
-  --iso-storage <pool>            (default: \$PROXMOX_ISO_STORAGE, ${PROXMOX_ISO_STORAGE})
-  --bridge <bridge>                (default: \$PROXMOX_BRIDGE, ${PROXMOX_BRIDGE})
-  --node <host>                     Proxmox node to SSH into (default:
-                                    \$PROXMOX_HOST, ${PROXMOX_HOST} --
-                                    production; the sandbox node is
-                                    \$PVE_TEST_HOST, ${PVE_TEST_HOST}).
-  --dry-run                           Print the full plan; touch nothing
-                                      local or remote, no prompts.
-  -h, --help
-
-Config for --storage/--bridge/--node/etc. lives in scripts/env.sh -- edit
-that instead of passing the same flag every time.
-EOF
-}
-
-dry_run=0
-modify=0
-type=""
-host=""
-name=""
-vmid=""
-cores=""
-memory=""
-swap=""
-disk_size=""
-grow_disk=""
-image=""
-storage="$PROXMOX_STORAGE"
-iso_storage="$PROXMOX_ISO_STORAGE"
-bridge="$PROXMOX_BRIDGE"
-node="$PROXMOX_HOST"
-remote_repo_dir="$PROXMOX_REMOTE_REPO_DIR"
-do_list=0
-allow_duplicate_host=0
-force_rebuild=0
-
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-  --type) type="$2"; shift 2 ;;
-  --host) host="$2"; shift 2 ;;
-  --name) name="$2"; shift 2 ;;
-  --vmid) vmid="$2"; shift 2 ;;
-  --cores) cores="$2"; shift 2 ;;
-  --memory) memory="$2"; shift 2 ;;
-  --swap) swap="$2"; shift 2 ;;
-  --disk-size) disk_size="$2"; shift 2 ;;
-  --grow-disk) grow_disk="$2"; shift 2 ;;
-  --image) image="$2"; shift 2 ;;
-  --storage) storage="$2"; shift 2 ;;
-  --iso-storage) iso_storage="$2"; shift 2 ;;
-  --bridge) bridge="$2"; shift 2 ;;
-  --node) node="$2"; shift 2 ;;
-  --remote-repo-dir) remote_repo_dir="$2"; shift 2 ;;
-  --list) do_list=1; shift ;;
-  --allow-duplicate-host) allow_duplicate_host=1; shift ;;
-  --force-rebuild) force_rebuild=1; shift ;;
-  --modify) modify=1; shift ;;
-  --dry-run) dry_run=1; shift ;;
-  -h | --help) usage; exit 0 ;;
-  *) echo "Unknown option: $1" >&2; usage >&2; exit 1 ;;
-  esac
-done
-
-ssh_target="${PROXMOX_SSH_USER}@${node}"
-
-# Proxmox tools (pvesh, qm, pct) require root access to the cluster IPC
-# socket. When SSH-ing as a non-root user with sudo, prefix every remote
-# Proxmox command with sudo.
-sudo_prefix=""
-sudo_display=""
-if [[ "$PROXMOX_SSH_USER" != "root" ]]; then
-  sudo_prefix="sudo"
-  sudo_display="sudo "
-fi
-
-remote() {
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] ssh ${ssh_target} -- $*"
-  else
-    ssh "$ssh_target" "$@"
-  fi
-}
-
-# ============================================================ modify mode
-cmd_modify() {
-  if [[ -z "$vmid" ]]; then
-    echo "ERROR: --modify requires --vmid." >&2
-    exit 1
-  fi
-  if [[ -z "$cores" && -z "$memory" && -z "$grow_disk" ]]; then
-    echo "ERROR: --modify needs at least one of --cores / --memory / --grow-disk." >&2
-    exit 1
-  fi
-
-  echo "Looking up VMID ${vmid} on ${node}..."
-  local kind current_cores current_memory disk_key
-  if ssh "$ssh_target" "${sudo_prefix} qm status ${vmid}" >/dev/null 2>&1; then
-    kind="vm"
-    disk_key="scsi0"
-  elif ssh "$ssh_target" "${sudo_prefix} pct status ${vmid}" >/dev/null 2>&1; then
-    kind="lxc"
-    disk_key="rootfs"
-  else
-    echo "ERROR: VMID ${vmid} doesn't exist on ${node} -- nothing to modify." >&2
-    exit 1
-  fi
-
-  local config_cmd="${sudo_prefix} qm config ${vmid}"
-  [[ "$kind" == "lxc" ]] && config_cmd="${sudo_prefix} pct config ${vmid}"
-  local current_config
-  current_config="$(ssh "$ssh_target" "$config_cmd")"
-  current_cores="$(echo "$current_config" | grep -oP '^cores:\s*\K\S+' || echo '?')"
-  current_memory="$(echo "$current_config" | grep -oP '^memory:\s*\K\S+' || echo '?')"
-
-  echo
-  echo "VMID ${vmid} is a ${kind} on ${node}. Planned changes:"
-  [[ -n "$cores" ]] && echo "  cores:  ${current_cores} -> ${cores}"
-  [[ -n "$memory" ]] && echo "  memory: ${current_memory} MB -> ${memory} MB"
-  [[ -n "$grow_disk" ]] && echo "  ${disk_key}: grow by +${grow_disk}G (Proxmox can only grow, not shrink, an existing disk)"
-
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo
-    echo "[dry-run] Nothing was changed."
-    return
-  fi
-
-  echo
-  if ! confirm_typed "$vmid" "Type the VMID (${vmid}) to confirm these changes: "; then
-    echo "Cancelled -- input didn't match ${vmid}."
-    exit 1
-  fi
-
-  local set_cmd="${sudo_prefix} qm set"
-  local resize_cmd="${sudo_prefix} qm resize"
-  [[ "$kind" == "lxc" ]] && set_cmd="${sudo_prefix} pct set" && resize_cmd="${sudo_prefix} pct resize"
-
-  if [[ -n "$cores" || -n "$memory" ]]; then
-    local args=""
-    [[ -n "$cores" ]] && args="${args} --cores ${cores}"
-    [[ -n "$memory" ]] && args="${args} --memory ${memory}"
-    remote "${set_cmd} ${vmid}${args}"
-  fi
-  if [[ -n "$grow_disk" ]]; then
-    remote "${resize_cmd} ${vmid} ${disk_key} +${grow_disk}G"
-  fi
-
-  echo
-  echo "Done. VMID ${vmid} updated."
-}
-
-if [[ "$modify" -eq 1 ]]; then
-  cmd_modify
-  exit 0
-fi
-
-# ============================================================= create mode
-if [[ "$type" != "lxc" && "$type" != "vm" ]]; then
-  echo "ERROR: --type must be 'lxc' or 'vm'." >&2
-  usage >&2
-  exit 1
-fi
-
-platform_prefix="lxc"
-[[ "$type" == "vm" ]] && platform_prefix="proxmox"
-[[ -z "$cores" ]] && cores="$PROXMOX_DEFAULT_CORES"
-[[ -z "$memory" ]] && memory="$PROXMOX_DEFAULT_MEMORY_MB"
-
-# --- discover / resolve the flake target from --host --------------------
-# Emits "<target>\t<hostName>" pairs for every ${platform_prefix}-* flake
-# target -- the one source both --list and the --host lookup below read
-# from, so they can never see a different set of targets from each other.
-targets_for_platform() {
-  local target
-  for target in $(list_flake_targets "$repo_root" 2>/dev/null | grep -- "^${platform_prefix}-"); do
-    printf '%s\t%s\n' "$target" "$(flake_target_hostname "$repo_root" "$target")"
-  done
-}
-
-list_hosts() {
-  local target hostname
-  while IFS=$'\t' read -r target hostname; do
-    printf '  %-12s -> %s\n' "$hostname" "$target"
-  done < <(targets_for_platform)
-}
-
-if [[ "$do_list" -eq 1 ]]; then
-  echo "Available --host values for --type ${type}:"
-  list_hosts
-  exit 0
-fi
-
-if [[ -z "$host" ]]; then
-  echo "ERROR: --host is required (or use --list to see options)." >&2
-  exit 1
-fi
-
-flake_target=""
-while IFS=$'\t' read -r target hostname; do
-  if [[ "$hostname" == "$host" ]]; then
-    flake_target="$target"
-    break
-  fi
-done < <(targets_for_platform)
-
-if [[ -z "$flake_target" ]]; then
-  echo "ERROR: no ${platform_prefix}-* target has hostName '${host}'." >&2
-  echo "Available:" >&2
-  list_hosts >&2
-  exit 1
-fi
-
-# The container/VM's real identity is --host (e.g. "nix-cache"), validated
-# above against config.networking.hostName -- not the flake target name
-# (e.g. "lxc-nix-cache"), which is build-type-specific and only exists to
-# pick which platform variant to build. Defaulting --name to the flake
-# target would make lxc's --hostname (which proxmoxLXC.manageHostName
-# feeds straight into the guest's real hostname) disagree with host.nix.
-[[ -z "$name" ]] && name="$host"
-
-# --- refuse to duplicate a host that's already live on the node ---------
-# Queries the node itself (qm/pct's own name/hostname config), not any
-# static list in this repo -- a file can't track whether a resource still
-# actually exists, and this used to be checked against variables.nix's
-# deployedTargets, which drifted stale (it kept naming a VM as "the real
-# deployment" well after that VM had been destroyed, blocking its own
-# redeploy) until that list was dropped in favour of this live check. This
-# only catches guests identified with the default --name (== --host, what
-# this script itself always uses unless --name is overridden) -- a guest
-# manually renamed on the node afterwards wouldn't match, but nothing here
-# creates guests that way.
-if [[ "$dry_run" -eq 1 ]]; then
-  echo
-  echo "[dry-run] would check ${node} for an existing VM/CT identified as '${host}'"
-  if [[ "$allow_duplicate_host" -eq 1 ]]; then
-    echo "[dry-run] --allow-duplicate-host: an existing ${type} named '${host}' would be" \
-      "destroyed and replaced; a different-type match would be left untouched"
-  fi
-else
-  echo
-  echo "==> Checking ${node} for an existing VM/CT identified as '${host}'..."
-  ssh_check_status=0
-  existing="$(ssh "$ssh_target" bash -s -- "$host" "$sudo_prefix" <<'REMOTE_SCRIPT'
-target="$1"
-sudo_pfx="$2"
-for id in $($sudo_pfx qm list 2>/dev/null | awk 'NR>1{print $1}'); do
-  n="$($sudo_pfx qm config "$id" 2>/dev/null | grep -oP '^name:\s*\K\S+' || true)"
-  [[ "$n" == "$target" ]] && echo "vm ${id} ${n}"
-done
-for id in $($sudo_pfx pct list 2>/dev/null | awk 'NR>1{print $1}'); do
-  n="$($sudo_pfx pct config "$id" 2>/dev/null | grep -oP '^hostname:\s*\K\S+' || true)"
-  [[ "$n" == "$target" ]] && echo "lxc ${id} ${n}"
-done
-exit 0
-REMOTE_SCRIPT
-  )" || ssh_check_status=$?
-  if [[ "$ssh_check_status" -ne 0 ]]; then
-    echo "ERROR: couldn't reach ${node} (ssh exited ${ssh_check_status}) to check for an" >&2
-    echo "existing '${host}' resource -- refusing to guess. Fix connectivity and retry," >&2
-    echo "or pass --allow-duplicate-host if you're sure none exists (this skips the" >&2
-    echo "check entirely)." >&2
-    exit 1
-  fi
-
-  # Split into "exact" (same resource kind as --type -- i.e. literally this
-  # same host+platform combo already exists, almost always a redeploy of
-  # the same target to test a rebuilt image) vs "cross-type" (a different
-  # platform sharing this host identity, e.g. a stopped proxmox-docker VM
-  # coexisting with an lxc-docker container -- a deliberate, valid setup
-  # this script has never managed and still won't). Read via a herestring
-  # (not a pipe) so the appends below survive outside the loop.
-  this_kind="$type"
-  exact_matches=""
-  cross_matches=""
-  if [[ -n "$existing" ]]; then
-    while read -r kind id n; do
-      [[ -z "$kind" ]] && continue
-      if [[ "$kind" == "$this_kind" ]]; then
-        exact_matches+="${kind} ${id} ${n}"$'\n'
-      else
-        cross_matches+="${kind} ${id} ${n}"$'\n'
-      fi
-    done <<<"$existing"
-  fi
-
-  if [[ -n "$exact_matches" && "$allow_duplicate_host" -ne 1 ]]; then
-    echo "ERROR: '${host}' already exists on ${node} as this same resource type:" >&2
-    echo "$exact_matches" | while read -r kind id n; do
-      [[ -z "$kind" ]] && continue
-      echo "  - ${kind} VMID ${id} (${n})" >&2
-    done
-    echo "Refusing to create a second ${this_kind} sharing this identity. Pass" >&2
-    echo "--allow-duplicate-host to destroy it and create a fresh one in its place" >&2
-    echo "(after confirming), or use --modify to reconfigure the existing one instead." >&2
-    exit 1
-  fi
-
-  if [[ -n "$cross_matches" && "$allow_duplicate_host" -ne 1 ]]; then
-    echo "ERROR: '${host}' already exists on ${node} as a different resource type:" >&2
-    echo "$cross_matches" | while read -r kind id n; do
-      [[ -z "$kind" ]] && continue
-      echo "  - ${kind} VMID ${id} (${n})" >&2
-    done
-    echo "Refusing to create a second resource sharing this identity. Pass" >&2
-    echo "--allow-duplicate-host to create one anyway (it gets its own distinct" >&2
-    echo "sops key and VMID -- the existing resource above is left untouched)," >&2
-    echo "or use --modify to reconfigure the existing one instead." >&2
-    exit 1
-  fi
-
-  if [[ -n "$cross_matches" ]]; then
-    echo "--allow-duplicate-host: '${host}' also exists on ${node} as a different resource" \
-      "type -- leaving it untouched:"
-    echo "$cross_matches" | while read -r kind id n; do
-      [[ -z "$kind" ]] && continue
-      echo "  - ${kind} VMID ${id} (${n})"
-    done
-  fi
-
-  if [[ -n "$exact_matches" ]]; then
-    echo "--allow-duplicate-host: '${host}' already exists on ${node} as this same resource" \
-      "type -- it will be destroyed and replaced:"
-    echo "$exact_matches" | while read -r kind id n; do
-      [[ -z "$kind" ]] && continue
-      echo "  - ${kind} VMID ${id} (${n})"
-    done
-    echo
-    if ! confirm_typed "$host" "Type the hostname (${host}) to confirm destroying the above and replacing it: "; then
-      echo "Cancelled -- input didn't match ${host}." >&2
-      exit 1
-    fi
-    echo "$exact_matches" | while read -r kind id n; do
-      [[ -z "$kind" ]] && continue
-      echo "==> Destroying ${kind} VMID ${id} (${n})..."
-      if [[ "$kind" == "vm" ]]; then
-        # qm destroy has no --force to stop-then-destroy in one call (pct's
-        # does) -- stop explicitly first if it's running.
-        if ssh "$ssh_target" "${sudo_prefix} qm status ${id}" 2>/dev/null | grep -q running; then
-          ssh "$ssh_target" "${sudo_prefix} qm stop ${id}"
-        fi
-        ssh "$ssh_target" "${sudo_prefix} qm destroy ${id} --purge 1"
-      else
-        ssh "$ssh_target" "${sudo_prefix} pct destroy ${id} --force 1 --purge 1"
-      fi
-    done
-  fi
-fi
-
-echo "Target: ${flake_target} (host=${host}, type=${type}) -> Proxmox resource '${name}'"
-
-# Decide on nix-cache once, here -- this is the earliest point that needs
-# it (sync-host-keys.sh below needs nix-shell packages regardless of
-# whether an image ends up getting built later), and the decision is
-# exported so that subprocess -- and this script's own later build step,
-# if it gets there -- both reuse it instead of probing again.
-nix_extra_opts
-
-# --- make sure this target has a registered host key --------------------
-echo
-echo "==> Ensuring host key exists and is registered..."
-sync_args=("$flake_target")
-[[ "$dry_run" -eq 1 ]] && sync_args+=(--dry-run)
-bash "$sync_keys" "${sync_args[@]}"
-
-# --- VMID: pick one, and refuse to touch anything that already exists ---
-echo
-if [[ -z "$vmid" ]]; then
-  if [[ "$dry_run" -eq 1 ]]; then
-    vmid="<next-free-vmid>"
-    echo "[dry-run] would ask ${node} for the next free VMID (pvesh get /cluster/nextid)"
-  else
-    vmid="$(ssh "$ssh_target" "${sudo_prefix} pvesh get /cluster/nextid" | tr -d '[:space:]')"
-    echo "Auto-assigned VMID: ${vmid}"
-  fi
-else
-  echo "Requested VMID: ${vmid}"
-fi
-
-if [[ "$dry_run" -eq 0 ]]; then
-  # qm/pct status exits non-zero (and prints "does not exist") for a free
-  # ID on that resource type -- but a VMID could exist as the OTHER
-  # resource type (e.g. requested a CT id that's actually a VM), so check
-  # both. Any success here means something is already using this ID --
-  # refuse to go anywhere near it. (Reconfiguring an existing resource is
-  # --modify's job, not this one's.)
-  if ssh "$ssh_target" "${sudo_prefix} qm status ${vmid}" >/dev/null 2>&1 \
-    || ssh "$ssh_target" "${sudo_prefix} pct status ${vmid}" >/dev/null 2>&1; then
-    echo "ERROR: VMID ${vmid} already exists on ${node}. Refusing to touch an" >&2
-    echo "existing resource here -- use --modify to reconfigure it, pick a" >&2
-    echo "different --vmid, or omit it to auto-assign." >&2
-    exit 1
-  fi
-fi
-
-# --- resolve the remote path -- fixed naming (not the nix store's own
-# derivation-hash-based filename), so a later run can check for it by name.
-# lxc uploads as a CT *template* (Proxmox's "vztmpl" content type, under
-# iso_storage) -- config.system.build.tarball is a plain rootfs tarball,
-# not a vzdump backup archive, so it's created with `pct create ... vztmpl`,
-# not restored with `pct restore` (that expects backup-archive metadata
-# this tarball doesn't have, and fails with "archive contains no
-# configuration file").
-remote_dir="/var/lib/vz/import"
-remote_filename="${flake_target}.raw"
-if [[ "$type" == "lxc" ]]; then
-  remote_dir="/var/lib/vz/template/cache"
-  remote_filename="${flake_target}.tar.xz"
-fi
-remote_path="${remote_dir}/${remote_filename}"
-
-# --- ensure the flake repo (+ tooling) exists on the node, and is current --
-# Bootstraps once (git clone from this checkout's own `origin`, then
-# scripts/codex-setup.sh installs Nix + friends) if ${remote_repo_dir}
-# doesn't exist yet on the node; otherwise just `git pull`s it, so the image
-# built there reflects what's actually committed and pushed. Only called
-# right before an actual remote build below -- reusing an image already on
-# the node, or an explicit --image, never touch the node's checkout at all.
-ensure_remote_repo() {
-  echo
-  echo "==> Ensuring ${remote_repo_dir} exists and is current on ${node}..."
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] would ensure ${remote_repo_dir} exists on ${node} (clone if missing, git pull if present), and would verify/bootstrap build tooling there (scripts/codex-setup.sh) if \`nix\` isn't already on PATH -- and if that bootstrap actually ran, would also configure ${node} as a nix-cache client (scripts/proxmox/configure-nix-cache-client.sh)"
-    return
-  fi
-
-  if ssh "$ssh_target" "test -d '${remote_repo_dir}/.git'"; then
-    echo "Repo present -- pulling latest..."
-    ssh "$ssh_target" "cd '${remote_repo_dir}' && git pull --ff-only"
-  else
-    local origin_url
-    origin_url="$(git -C "$repo_root" remote get-url origin 2>/dev/null || true)"
-    if [[ -z "$origin_url" ]]; then
-      echo "ERROR: ${remote_repo_dir} doesn't exist on ${node}, and this checkout has no" >&2
-      echo "'origin' remote to clone from. Set one (git remote add origin <url>) or create" >&2
-      echo "${remote_repo_dir} on ${node} yourself (e.g. git clone), then re-run." >&2
-      exit 1
-    fi
-    echo "Not present -- cloning from ${origin_url}..."
-    ssh "$ssh_target" "git clone '${origin_url}' '${remote_repo_dir}'"
-  fi
-
-  # Trivial check, run every time (not just right after a fresh clone) --
-  # confirmed live: a first bootstrap can clone the repo successfully and
-  # still leave the node without a working `nix` (e.g. the node had no
-  # `sudo`, which the Nix installer's root path depends on -- see the fix
-  # in scripts/codex-setup.sh), and a later run with the repo already
-  # present would otherwise never retry it. Sources
-  # scripts/lib/nix-bootstrap.sh's ensure_nix_profile first -- a
-  # single-user Nix install typically only gets sourced into login shells,
-  # and ssh's non-interactive command execution is neither, so a
-  # freshly-installed `nix` still wouldn't be on PATH here without it.
-  #
-  # Just `nix` today -- the only thing the remote build commands below
-  # actually invoke -- but a list (not a single hardcoded check) so a
-  # future remote step needing another tool can add itself here instead of
-  # growing a parallel check.
-  local remote_required_cmds=(nix)
-  local tooling_check_cmd="cd '${remote_repo_dir}' && . scripts/lib/nix-bootstrap.sh && ensure_nix_profile"
-  local cmd
-  for cmd in "${remote_required_cmds[@]}"; do
-    tooling_check_cmd="${tooling_check_cmd} && command -v ${cmd}"
-  done
-
-  if ssh "$ssh_target" "$tooling_check_cmd" >/dev/null 2>&1; then
-    echo "Build tooling already present on ${node}."
-  else
-    echo "==> Bootstrapping build tooling on ${node} (scripts/codex-setup.sh)..."
-    ssh "$ssh_target" "cd '${remote_repo_dir}' && bash scripts/codex-setup.sh"
-
-    # Only on this first-time bootstrap, not every run -- a node that
-    # already has tooling either already went through this once, or had
-    # it configured some other way, and re-running is harmless but
-    # pointless. Non-fatal: this only makes the node's own builds faster
-    # (substitute from nix-cache instead of building from source) and
-    # offloadable to it as a remote builder -- worth trying, not worth
-    # aborting the image build over if nix-cache happens to be down right
-    # now. Needs ensure_nix_profile first, same as the tooling_check_cmd
-    # above -- ssh's non-interactive command execution won't have picked
-    # up a freshly single-user-installed `nix` otherwise.
-    echo "==> Configuring ${node} as a nix-cache substituter/remote-builder client..."
-    if ! ssh "$ssh_target" "cd '${remote_repo_dir}' && . scripts/lib/nix-bootstrap.sh && ensure_nix_profile && bash scripts/proxmox/configure-nix-cache-client.sh"; then
-      echo "WARNING: configure-nix-cache-client.sh failed on ${node} -- continuing without it (${node} will build from source / against cache.nixos.org only)." >&2
-    fi
-  fi
-}
-
-# --- sync locally-managed host-keys/ to the node ---------------------------
-# Gitignored (see .gitignore), so `git pull` above never carries it -- both
-# build paths need it present as NIXOS_HOST_KEYS_DIR / --pre-format-files
-# input on the node itself now that the build runs there. scp (not rsync,
-# not already a dependency anywhere else in this repo) mirrors how this
-# script already transfers the --image case below.
-sync_remote_host_keys() {
-  echo
-  echo "==> Syncing host-keys/ to ${node}..."
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] would copy ${repo_root}/host-keys/ to ${ssh_target}:${remote_repo_dir}/host-keys/"
-    return
-  fi
-  ssh "$ssh_target" "mkdir -p '${remote_repo_dir}/host-keys'"
-  scp -pr "${repo_root}/host-keys/." "${ssh_target}:${remote_repo_dir}/host-keys/"
-}
-
-# --- build (or reuse an image already on the node) ------------------------
-echo
-local_image=""
-image_already_remote=0
-
-if [[ -n "$image" ]]; then
-  [[ -f "$image" ]] || { echo "ERROR: --image '${image}' not found." >&2; exit 1; }
-  local_image="$image"
-  echo "Using provided image: ${local_image}"
-elif [[ "$force_rebuild" -eq 1 ]]; then
-  echo "--force-rebuild: skipping the existing-image check on ${node}."
-else
-  echo "==> Checking whether ${node} already has ${remote_path}..."
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] would check: ssh ${ssh_target} -- test -f ${remote_path}"
-  elif ssh "$ssh_target" "test -f '${remote_path}'" 2>/dev/null; then
-    echo "Found it -- reusing, skipping build (use --force-rebuild to override)."
-    image_already_remote=1
-  else
-    echo "Not found -- will build."
-  fi
-fi
-
-if [[ "$image_already_remote" -eq 0 && -z "$local_image" ]]; then
-  ensure_remote_repo
-  sync_remote_host_keys
-
-  # Relayed into the remote build below exactly as decided by the local
-  # nix_extra_opts call earlier in this script -- that decision (whether
-  # nix-cache is reachable) is made once, locally, same as it always has
-  # been; only *where* the resulting "${NIX_OPTS[@]}" gets used as a `nix
-  # build` flag moves to the node. NIX_EXTRA_OPTS is already a %q-quoted
-  # string built for exactly this eval-based reconstruction (see env.sh).
-  nix_opts_display=""
-  if [[ ${#NIX_OPTS[@]} -gt 0 ]]; then
-    printf -v nix_opts_display '%q ' "${NIX_OPTS[@]}"
-    nix_opts_display=" ${nix_opts_display% }"
-  fi
-
-  if [[ "$type" == "lxc" ]]; then
-    if [[ "$dry_run" -eq 1 ]]; then
-      echo "[dry-run] would build on ${node}: NIXOS_HOST_KEYS_DIR=\$(pwd)/host-keys nix build --impure \\"
-      echo "[dry-run]   --no-use-registries --no-accept-flake-config${nix_opts_display} \\"
-      echo "[dry-run]   .#nixosConfigurations.${flake_target}.config.system.build.tarball"
-      echo "[dry-run] would stage the result at ${remote_path}"
-      local_image="<built-tarball>"
-    else
-      echo "==> Building LXC tarball for ${flake_target} on ${node}..."
-      # Built as a single already-%q-quoted command string, not separate ssh
-      # argv elements -- ssh joins remote command args with plain spaces and
-      # hands the result to the remote shell to re-split, which would
-      # otherwise scatter NIX_EXTRA_OPTS (itself several space-separated,
-      # %q-quoted tokens) across the wrong positional parameters below.
-      printf -v remote_cmd 'bash -s -- %q %q %q %q %q %q' \
-        "$remote_repo_dir" "$flake_target" "$remote_dir" "$remote_filename" "$NIX_EXTRA_OPTS" "$sudo_prefix"
-      ssh "$ssh_target" "$remote_cmd" <<'REMOTE_SCRIPT'
-set -euo pipefail
-repo_dir="$1"; target="$2"; dest_dir="$3"; dest_name="$4"; nix_extra_opts_str="$5"; sudo_pfx="$6"
-declare -a NIX_OPTS=()
-[[ -n "$nix_extra_opts_str" ]] && eval "NIX_OPTS=(${nix_extra_opts_str})"
-cd "$repo_dir"
-# A single-user Nix install only gets sourced into login shells; this ssh
-# session is neither, so `nix` wouldn't otherwise be on PATH here even
-# right after a successful install.
-. scripts/lib/nix-bootstrap.sh
-ensure_nix_profile
-NIXOS_HOST_KEYS_DIR="$(pwd)/host-keys" nix build --impure \
-  --no-use-registries --no-accept-flake-config "${NIX_OPTS[@]}" \
-  ".#nixosConfigurations.${target}.config.system.build.tarball" \
-  --out-link "result-${target}"
-built="$(find "result-${target}/tarball" -maxdepth 1 -type f | head -1)"
-if [[ -z "$built" ]]; then
-  echo "ERROR: no tarball found under result-${target}/tarball after build." >&2
-  exit 1
-fi
-$sudo_pfx mkdir -p "$dest_dir"
-$sudo_pfx cp "$built" "${dest_dir}/${dest_name}"
-echo "Built and staged: ${dest_dir}/${dest_name}"
-REMOTE_SCRIPT
-      local_image="$remote_path"
-      echo "Built on ${node}: ${remote_path}"
-    fi
-  else
-    if [[ "$dry_run" -eq 1 ]]; then
-      echo "[dry-run] would build on ${node}: nix build --no-use-registries --no-accept-flake-config${nix_opts_display} \\"
-      echo "[dry-run]   .#nixosConfigurations.${flake_target}.config.system.build.diskoImagesScript"
-      echo "[dry-run] would run:   ${sudo_display}./result-${flake_target} \\"
-      echo "[dry-run]                --pre-format-files host-keys/${flake_target}_ssh_host_ed25519_key /etc/ssh/ssh_host_ed25519_key \\"
-      echo "[dry-run]                --pre-format-files host-keys/${flake_target}_ssh_host_ed25519_key.pub /etc/ssh/ssh_host_ed25519_key.pub \\"
-      echo "[dry-run]                --build-memory 2048"
-      echo "[dry-run] would stage the result at ${remote_path}"
-      local_image="<built-image>.raw"
-    else
-      echo "==> Building Disko image for ${flake_target} on ${node}..."
-      # See the LXC branch above for why this is one %q-quoted command
-      # string rather than separate ssh argv elements.
-      printf -v remote_cmd 'bash -s -- %q %q %q %q %q %q' \
-        "$remote_repo_dir" "$flake_target" "$remote_dir" "$remote_filename" "$NIX_EXTRA_OPTS" "$sudo_prefix"
-      ssh "$ssh_target" "$remote_cmd" <<'REMOTE_SCRIPT'
-set -euo pipefail
-repo_dir="$1"; target="$2"; dest_dir="$3"; dest_name="$4"; nix_extra_opts_str="$5"; sudo_pfx="$6"
-declare -a NIX_OPTS=()
-[[ -n "$nix_extra_opts_str" ]] && eval "NIX_OPTS=(${nix_extra_opts_str})"
-cd "$repo_dir"
-. scripts/lib/nix-bootstrap.sh
-ensure_nix_profile
-nix build --no-use-registries --no-accept-flake-config "${NIX_OPTS[@]}" \
-  ".#nixosConfigurations.${target}.config.system.build.diskoImagesScript" \
-  --out-link "result-${target}"
-$sudo_pfx "./result-${target}" \
-  --pre-format-files "host-keys/${target}_ssh_host_ed25519_key" /etc/ssh/ssh_host_ed25519_key \
-  --pre-format-files "host-keys/${target}_ssh_host_ed25519_key.pub" /etc/ssh/ssh_host_ed25519_key.pub \
-  --build-memory 2048
-built="$(find . -maxdepth 1 -name '*.raw' -newer "result-${target}" | head -1)"
-if [[ -z "$built" ]]; then
-  echo "ERROR: no .raw image found in ${repo_dir} after build." >&2
-  exit 1
-fi
-$sudo_pfx mkdir -p "$dest_dir"
-$sudo_pfx mv "$built" "${dest_dir}/${dest_name}"
-echo "Built and staged: ${dest_dir}/${dest_name}"
-REMOTE_SCRIPT
-      local_image="$remote_path"
-      echo "Built on ${node}: ${remote_path}"
-    fi
-  fi
-fi
-
-# --- upload -- only for an explicit --image; a build above stages its
-# result directly at ${remote_path} on the node already, and reusing an
-# image already on the node needs nothing transferred either. ------------
-echo
-if [[ -n "$image" ]]; then
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] would upload: scp ${local_image} ${ssh_target}:${remote_path}"
-  else
-    echo "==> Uploading to ${node}:${remote_path}..."
-    ssh "$ssh_target" "mkdir -p ${remote_dir}"
-    scp "$local_image" "${ssh_target}:${remote_path}"
-  fi
-fi
-
-# --- create -----------------------------------------------------------------
-echo
-if [[ "$type" == "lxc" ]]; then
-  echo "==> Creating LXC container ${vmid} (${name})..."
-  local_disk_size="${disk_size:-$PROXMOX_DEFAULT_LXC_DISK_GB}"
-  # --memory doesn't touch swap -- it silently stays at Proxmox's own
-  # 512M default otherwise (confirmed live: --memory 2048 left swap at
-  # 512). Default to matching whatever --memory resolved to above.
-  local_swap="${swap:-$memory}"
-  # --unprivileged: read back from modules/platforms/lxc.nix's own
-  # proxmoxLXC.privileged (via flake_target_lxc_privileged) rather than
-  # hardcoded, since that's no longer the same for every lxc-* target --
-  # lxc-docker sets it true so the container's NFS mounts work at all (the
-  # kernel's NFS client can't mount from inside any unprivileged
-  # container's user namespace, no matter what AppArmor allows -- see that
-  # option's own comment). The NixOS config inside the image bakes in
-  # cgroup/capability/mount expectations matching whichever value it was
-  # built with, so this must stay in sync with it -- `pct create`'s own
-  # CLI default for this flag is privileged (unlike the web UI, which
-  # defaults its checkbox the other way), so leaving it unset would create
-  # a privileged container running a NixOS config that assumes
-  # unprivileged for every target except lxc-docker, a real mismatch.
-  privileged_eval="$(flake_target_lxc_privileged "$repo_root" "$flake_target")"
-  unprivileged_flag=1
-  [[ "$privileged_eval" == "true" ]] && unprivileged_flag=0
-  #
-  # --features nesting=1,keyctl=1: required for a modern (v247+) systemd
-  # guest to actually boot unprivileged -- confirmed live: without this,
-  # AppArmor denies the nested user namespaces and credential mounts
-  # systemd routinely uses (even plain getty units), and every getty
-  # crash-loops on a denied mount every ~3s (visible as garbage on the
-  # console) while core services like nsncd fail the same way.
-  #
-  # ...,mount=nfs;nfs4: without it AppArmor blanket-denies the `nfs`/
-  # `rpc_pipefs` mount syscalls any NFS client share needs -- confirmed
-  # live on lxc-docker: `mount: /var/lib/nfs/rpc_pipefs: permission
-  # denied`. The value's `;` (Proxmox's own multi-fstype separator for
-  # this one feature, per PVE::LXC's use of PVE::ParseUtils::split_list)
-  # must stay single-quoted here: create_cmd is sent to `remote()`, which
-  # hands the whole string to `ssh` as a single command for the *remote*
-  # shell to parse -- unquoted, that `;` would be read as a remote
-  # command separator and silently truncate this into two commands.
-  create_cmd="${sudo_prefix} pct create ${vmid} ${iso_storage}:vztmpl/${remote_filename} --unprivileged ${unprivileged_flag} --features '${PROXMOX_DEFAULT_LXC_FEATURES}' --rootfs ${storage}:${local_disk_size} --hostname ${name} --cores ${cores} --memory ${memory} --swap ${local_swap} --net0 name=eth0,bridge=${bridge},ip=dhcp"
-  remote "$create_cmd"
-  remote "${sudo_prefix} pct start ${vmid}"
-else
-  echo "==> Creating VM ${vmid} (${name})..."
-  # pre-enrolled-keys=0 disables OVMF's Secure Boot key pre-enrollment --
-  # required, or systemd-boot (unsigned) can't be trusted by the firmware.
-  # --agent 1: wires up the virtio-serial channel QEMU exposes to the guest.
-  # modules/common/configuration.nix sets services.qemuGuest.enable = true
-  # on every host, so the guest-side qemu-ga daemon is already running --
-  # without this flag Proxmox never creates the channel it listens on, so
-  # `qm guest exec`/`qm agent` and the UI's IP-address display silently
-  # never work for any VM this script creates.
-  remote "${sudo_prefix} qm create ${vmid} --name ${name} --memory ${memory} --cores ${cores} \
---net0 virtio,bridge=${bridge} --bios ovmf --machine q35 --scsihw virtio-scsi-pci \
---efidisk0 ${storage}:1,efitype=4m,pre-enrolled-keys=0 --agent enabled=1"
-
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] ssh ${ssh_target} -- ${sudo_display}qm importdisk ${vmid} ${remote_path} ${storage}"
-    echo "[dry-run] (would parse the resulting disk identifier from that output)"
-    echo "[dry-run] ssh ${ssh_target} -- ${sudo_display}qm set ${vmid} --scsi0 ${storage}:<parsed-disk-id>"
-  else
-    importdisk_output="$(ssh "$ssh_target" "${sudo_prefix} qm importdisk ${vmid} ${remote_path} ${storage}")"
-    echo "$importdisk_output"
-    disk_id="$(echo "$importdisk_output" | grep -oP "(?<=Successfully imported disk as ')[^']+" | sed 's/^unused[0-9]*://')"
-    if [[ -z "$disk_id" ]]; then
-      echo "ERROR: couldn't parse the imported disk identifier from qm importdisk's output above." >&2
-      echo "The VM shell (${vmid}) and imported disk both exist -- finish attaching it by hand:" >&2
-      echo "  ssh ${ssh_target} -- ${sudo_display}qm set ${vmid} --scsi0 ${storage}:<disk-id-from-output-above>" >&2
-      echo "  ssh ${ssh_target} -- ${sudo_display}qm set ${vmid} --boot order=scsi0" >&2
-      exit 1
-    fi
-    remote "${sudo_prefix} qm set ${vmid} --scsi0 ${disk_id}"
-  fi
-  remote "${sudo_prefix} qm set ${vmid} --boot order=scsi0"
-  remote "${sudo_prefix} qm start ${vmid}"
-fi
-
-echo
-if [[ "$dry_run" -eq 1 ]]; then
-  echo "[dry-run] Nothing was built, uploaded, or created."
-else
-  echo "Done. ${name} (VMID ${vmid}) should be booting on ${node}."
-fi

scripts/recover-hosts.sh

@@ -1,253 +0,0 @@
-#!/usr/bin/env bash
-# recover-hosts.sh — Fix sops/SSH-key/GitHub-token issues on deployed NixOS hosts
-# and trigger a Switch-nix rebuild on each.
-#
-# Run from the repo root on the workstation (nixos@nixos):
-#   bash scripts/recover-hosts.sh [<hostname> ...]
-#
-# With no args it discovers and checks every known hostname.
-# With args it checks only those hostnames:
-#   bash scripts/recover-hosts.sh tor-relay
-#
-# Fixes applied automatically (then prompts before rebuilding):
-#   1. SSH host key drift — live key no longer matches host-keys/<target>_ssh_host_ed25519_key
-#      Fix: scp the registered key back and restore it (needs sudo once per host).
-#      To push new keys proactively (before drift, e.g. right after
-#      sync-host-keys.sh --regenerate-all-keys), use instead:
-#        scripts/secrets/push-host-keys.sh --all
-#   2. Stale/invalid GitHub access token — the rendered nix-github-token.conf has
-#      a token GitHub rejects (401), blocking any rebuild that fetches disko or
-#      other public GitHub flake inputs.
-#      Fix: empty the rendered file so nix makes unauthenticated requests instead.
-#      Public repos (disko, nixpkgs, etc.) work fine without auth. sops-nix
-#      re-renders the correct new token automatically after the first successful
-#      rebuild.
-#
-# Both fixes need one interactive sudo session per host. The script opens a
-# single ssh -t per broken host so you enter the password once and all steps
-# run in sequence.
-
-set -euo pipefail
-cd "$(dirname "$0")/.."
-source scripts/env.sh 2>/dev/null || true
-
-SSH_OPTS=(-o StrictHostKeyChecking=no -o BatchMode=yes -o ConnectTimeout=5)
-SSH_USER=nixos
-
-# Known flake-target → ssh hostname map for all currently-defined hosts.
-# Add new hosts here as they are deployed.
-declare -A TARGET_HOST=(
-  [lxc-docker]=docker
-  [lxc-nix-cache]=nix-cache
-  [lxc-pxe-boot]=pxe-boot
-  [lxc-tor-relay]=tor-relay
-  [lxc-minimal]=nix-minimal
-  [proxmox-server]=server
-  [baremetal-gui]=nixos
-)
-
-# ── helpers ───────────────────────────────────────────────────────────────────
-
-info() { echo "  [✓] $*"; }
-warn() { echo "  [!] $*"; }
-step() { echo "==> $*"; }
-
-ssh_host_age() {
-  ssh-keyscan -t ed25519 "$1" 2>/dev/null \
-    | nix shell nixpkgs#ssh-to-age --command ssh-to-age 2>/dev/null \
-    | head -1 || true
-}
-
-registered_age() {
-  local keyfile="host-keys/${1}_ssh_host_ed25519_key.pub"
-  [ -f "$keyfile" ] || return 0
-  nix shell nixpkgs#ssh-to-age --command ssh-to-age < "$keyfile" 2>/dev/null \
-    | head -1 || true
-}
-
-github_token_valid() {
-  local host=$1
-  local raw token code
-  raw=$(ssh "${SSH_OPTS[@]}" "$SSH_USER@$host" \
-    "cat /run/secrets/rendered/nix-github-token.conf 2>/dev/null || true")
-  token=$(echo "$raw" | grep -oP '(?<=github\.com=)\S+' || true)
-  if [ -z "$token" ]; then
-    return 0  # no token = unauthenticated, works for public repos
-  fi
-  code=$(curl -s -o /dev/null -w "%{http_code}" \
-    -H "Authorization: token $token" \
-    "https://api.github.com/repos/nix-community/disko" 2>/dev/null || echo 000)
-  [ "$code" = "200" ]
-}
-
-# ── discover hosts ────────────────────────────────────────────────────────────
-
-if [ $# -gt 0 ]; then
-  HOSTNAMES=("$@")
-else
-  HOSTNAMES=()
-  seen=()
-  for target in "${!TARGET_HOST[@]}"; do
-    h="${TARGET_HOST[$target]}"
-    # deduplicate (e.g. proxmox-server and lxc-server both map to "server")
-    if [[ ! " ${seen[*]:-} " =~ " $h " ]]; then
-      seen+=("$h")
-      if ssh "${SSH_OPTS[@]}" "$SSH_USER@$h" "true" 2>/dev/null; then
-        HOSTNAMES+=("$h")
-      fi
-    fi
-  done
-fi
-
-if [ ${#HOSTNAMES[@]} -eq 0 ]; then
-  echo "No reachable hosts found. Pass hostnames explicitly or check SSH."
-  exit 1
-fi
-
-echo ""
-echo "Hosts to check: ${HOSTNAMES[*]}"
-echo ""
-
-# ── check phase ───────────────────────────────────────────────────────────────
-
-NEEDS_FIX=()
-
-for host in "${HOSTNAMES[@]}"; do
-  step "$host"
-
-  if ! ssh "${SSH_OPTS[@]}" "$SSH_USER@$host" "true" 2>/dev/null; then
-    warn "SSH unreachable — clearing stale known_hosts entry"
-    ssh-keygen -R "$host" 2>/dev/null || true
-    continue
-  fi
-
-  flake_target=$(ssh "${SSH_OPTS[@]}" "$SSH_USER@$host" \
-    "cat /etc/flake-target 2>/dev/null || true")
-  echo "  flake-target: ${flake_target:-unknown}"
-
-  host_broken=false
-
-  # SSH host key
-  if [ -n "$flake_target" ] && [ -f "host-keys/${flake_target}_ssh_host_ed25519_key.pub" ]; then
-    live=$(ssh_host_age "$host")
-    want=$(registered_age "$flake_target")
-    if [ "$live" = "$want" ]; then
-      info "SSH host key OK"
-    else
-      warn "SSH host key MISMATCH (live ≠ host-keys/) -- use push-host-keys.sh proactively next time"
-      echo "       live:       $live"
-      echo "       registered: $want"
-      host_broken=true
-    fi
-  else
-    echo "  [~] No host-keys/ entry for ${flake_target:-unknown} — skipping key check"
-  fi
-
-  # GitHub token
-  if github_token_valid "$host"; then
-    info "GitHub token OK"
-  else
-    warn "GitHub token invalid (rebuild will fail with 401)"
-    host_broken=true
-  fi
-
-  # sops-nix result
-  sops_result=$(ssh "${SSH_OPTS[@]}" "$SSH_USER@$host" \
-    "systemctl show sops-nix --property=Result --value 2>/dev/null || echo unknown")
-  if [ "$sops_result" = "success" ]; then
-    info "sops-nix: success"
-  else
-    warn "sops-nix: $sops_result"
-  fi
-
-  $host_broken && NEEDS_FIX+=("$host")
-  echo ""
-done
-
-# ── fix phase ─────────────────────────────────────────────────────────────────
-
-if [ ${#NEEDS_FIX[@]} -eq 0 ]; then
-  echo "All hosts healthy — nothing to fix."
-  exit 0
-fi
-
-echo "Hosts needing fixes: ${NEEDS_FIX[*]}"
-echo ""
-echo "Each fix requires one sudo session per host. You will be prompted for"
-echo "the nixos sudo password once per host; all steps run in that session."
-echo ""
-read -r -p "Proceed with fixes + Switch-nix on each broken host? [y/N] " confirm
-[[ "$confirm" =~ ^[Yy]$ ]] || { echo "Aborted."; exit 0; }
-echo ""
-
-for host in "${NEEDS_FIX[@]}"; do
-  step "Fixing $host"
-  flake_target=$(ssh "${SSH_OPTS[@]}" "$SSH_USER@$host" \
-    "cat /etc/flake-target 2>/dev/null || true")
-
-  fix_script=""
-
-  # Fix 1: restore SSH host key
-  live=$(ssh_host_age "$host")
-  want=$(registered_age "${flake_target:-}")
-  if [ -n "$want" ] && [ "$live" != "$want" ]; then
-    echo "  Uploading registered SSH host key (private + public)..."
-    scp -o StrictHostKeyChecking=no \
-      "host-keys/${flake_target}_ssh_host_ed25519_key" \
-      "$SSH_USER@$host:/tmp/recover_ed25519_key"
-    scp -o StrictHostKeyChecking=no \
-      "host-keys/${flake_target}_ssh_host_ed25519_key.pub" \
-      "$SSH_USER@$host:/tmp/recover_ed25519_key.pub"
-    fix_script+='
-echo "[fix] Restoring SSH host key..."
-install -m 0600 /tmp/recover_ed25519_key /etc/ssh/ssh_host_ed25519_key
-install -m 0644 /tmp/recover_ed25519_key.pub /etc/ssh/ssh_host_ed25519_key.pub
-rm -f /tmp/recover_ed25519_key /tmp/recover_ed25519_key.pub
-echo "      Done."
-'
-    ssh-keygen -R "$host" 2>/dev/null || true
-  fi
-
-  # Fix 2: clear invalid GitHub token
-  if ! github_token_valid "$host"; then
-    fix_script+='
-echo "[fix] Clearing stale GitHub token (nix will use unauthenticated access)..."
-echo "" > /run/secrets/rendered/nix-github-token.conf
-systemctl restart nix-daemon 2>/dev/null || true
-echo "      Done."
-'
-  fi
-
-  # Fix 3: rebuild
-  fix_script+='
-echo "[fix] Running nixos-rebuild switch..."
-nixos-rebuild switch \
-  --no-write-lock-file \
-  --refresh \
-  --flake "git+https://gitea.lan.ddnsgeek.com/beatzaplenty/nixos.git#$(cat /etc/flake-target)"
-echo "[fix] Rebuild complete."
-'
-
-  echo "  Opening SSH session (enter sudo password when prompted)..."
-  if ssh -t -o StrictHostKeyChecking=no "$SSH_USER@$host" \
-    "sudo bash -s" <<< "$fix_script"; then
-    echo ""
-    info "$host fixed and rebuilt"
-  else
-    rc=$?
-    echo ""
-    warn "$host: rebuild exited with code $rc (may still have succeeded — check sops-nix below)"
-  fi
-
-  # Verify: re-check sops-nix result post-rebuild
-  sops_result_after=$(ssh "${SSH_OPTS[@]}" "$SSH_USER@$host" \
-    "systemctl show sops-nix --property=Result --value 2>/dev/null || echo unknown" 2>/dev/null || echo "ssh-failed")
-  if [ "$sops_result_after" = "success" ]; then
-    info "$host sops-nix: success post-rebuild"
-  else
-    warn "$host sops-nix: $sops_result_after post-rebuild (may need another pass)"
-  fi
-  echo ""
-done
-
-echo "Recovery complete."

scripts/secrets/backup-admin-key.sh

@@ -1,150 +0,0 @@
-#!/usr/bin/env bash
-# Backs up the local sops age key (the private key that decrypts
-# secrets/*.yaml -- normally the one trusted as &admin) to an arbitrary
-# destination path, e.g. a USB drive or other offline storage, so it can
-# later be restored and handed to rotate-admin-key.sh if this machine's
-# copy is ever lost, or to run either script from a different machine.
-#
-# Usage:
-#   scripts/secrets/backup-admin-key.sh <dest-path> [--key-file <path>] [--force] [--dry-run]
-#
-# Source key resolution matches sops/age's own default order:
-#   $SOPS_AGE_KEY (inline identity text) if set, else
-#   --key-file if given, else
-#   $SOPS_AGE_KEY_FILE if set, else
-#   ${XDG_CONFIG_HOME:-$HOME/.config}/sops/age/keys.txt
-set -euo pipefail
-
-repo_root="$(cd "$(dirname "$0")/../.." && pwd)"
-sops_yaml="${repo_root}/.sops.yaml"
-
-# shellcheck source=../env.sh
-source "${repo_root}/scripts/env.sh"
-# shellcheck source=../lib/sops-age.sh
-source "${repo_root}/scripts/lib/sops-age.sh"
-
-# Pin cwd for the same reason rotate-admin-key.sh does: age/sops calls
-# below should never depend on wherever the caller's shell happened to be.
-cd "$repo_root"
-
-usage() {
-  cat <<EOF
-Usage: $0 <dest-path> [--key-file <path>] [--force] [--dry-run]
-
-  <dest-path>        Where to write the backup. Parent directories are
-                     created as needed. Written with 0600 permissions.
-  --key-file <path>  Read the key from here instead of the default
-                     sops/age resolution (\$SOPS_AGE_KEY_FILE, then
-                     \${XDG_CONFIG_HOME:-\$HOME/.config}/sops/age/keys.txt).
-                     Ignored if \$SOPS_AGE_KEY is set (that always wins,
-                     same precedence sops/age itself uses).
-  --force            Overwrite <dest-path> if it already exists.
-  --dry-run          Print what would happen; write nothing.
-EOF
-}
-
-dry_run=0
-force=0
-key_file="$DEFAULT_SOPS_AGE_KEY_FILE"
-args=()
-
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-    --dry-run)
-      dry_run=1
-      shift
-      ;;
-    --force)
-      force=1
-      shift
-      ;;
-    --key-file)
-      key_file="${2:?--key-file requires a path}"
-      shift 2
-      ;;
-    -h | --help)
-      usage
-      exit 0
-      ;;
-    --*)
-      echo "Unknown option: $1" >&2
-      usage >&2
-      exit 1
-      ;;
-    *)
-      args+=("$1")
-      shift
-      ;;
-  esac
-done
-
-if [[ "${#args[@]}" -ne 1 ]]; then
-  usage >&2
-  exit 1
-fi
-dest="${args[0]}"
-
-nix_extra_opts
-
-if [[ -n "${SOPS_AGE_KEY:-}" ]]; then
-  echo "==> Source: \$SOPS_AGE_KEY (inline identity from the environment)."
-  src_content="$SOPS_AGE_KEY"
-else
-  [[ -s "$key_file" ]] || {
-    echo "ERROR: no key found. \$SOPS_AGE_KEY is unset and ${key_file} doesn't exist or is empty." >&2
-    exit 1
-  }
-  echo "==> Source: ${key_file}"
-  src_content="$(cat "$key_file")"
-fi
-
-# Round-trip through a private scratch file (rather than trusting the
-# source string as-is) so age-keygen -y validates it's a real identity
-# before anything is written to <dest-path>.
-scratch="$(mktemp)"
-trap 'rm -f "$scratch"' EXIT
-( umask 077; printf '%s\n' "$src_content" > "$scratch" )
-
-src_pub="$(age_pubkey_from_identity_file "$scratch")" || {
-  echo "ERROR: source doesn't look like a valid age identity (age-keygen -y failed)." >&2
-  exit 1
-}
-echo "    public key: ${src_pub}"
-
-current_admin_pub="$(sops_yaml_admin_pubkey "$sops_yaml")"
-if [[ -n "$current_admin_pub" && "$current_admin_pub" != "$src_pub" ]]; then
-  echo "NOTE: this key does not match .sops.yaml's current &admin entry (${current_admin_pub})."
-  echo "      Backing it up anyway -- this script doesn't require it to be the admin key."
-fi
-
-if [[ -e "$dest" && "$force" -ne 1 ]]; then
-  echo "ERROR: ${dest} already exists. Pass --force to overwrite." >&2
-  exit 1
-fi
-
-if [[ "$dry_run" -eq 1 ]]; then
-  echo
-  echo "[dry-run] would write $(wc -c <"$scratch" | tr -d ' ') bytes to ${dest} (mode 0600)"
-  [[ -e "$dest" ]] && echo "[dry-run] would overwrite existing file (--force given)"
-  echo "[dry-run] Nothing was written. Re-run without --dry-run to apply this."
-  exit 0
-fi
-
-mkdir -p "$(dirname "$dest")"
-install -m 600 "$scratch" "$dest"
-
-dest_pub="$(age_pubkey_from_identity_file "$dest")"
-if [[ "$dest_pub" != "$src_pub" ]]; then
-  echo "ERROR: ${dest} was written but its public key doesn't match the source -- investigate before relying on this backup." >&2
-  exit 1
-fi
-
-cat <<EOF
-
-Done. Backed up to: ${dest}
-  public key: ${dest_pub}
-
-This is a private key -- store it somewhere offline/secure, not in this
-repo or anywhere it'd get committed. Restore it with:
-  scripts/secrets/rotate-admin-key.sh ${dest}
-EOF

scripts/secrets/push-host-keys.sh

@@ -1,318 +0,0 @@
-#!/usr/bin/env bash
-# Pushes newly-generated SSH host keys from host-keys/ to already-running
-# NixOS hosts, so they can decrypt sops secrets after a nixos-rebuild
-# following scripts/secrets/sync-host-keys.sh --regenerate-all-keys.
-#
-# Before pushing any key, verifies that .sops.yaml and secrets/*.yaml are
-# committed and pushed to the remote -- hosts rebuild from the remote Gitea
-# flake, so recipient changes must land there before any rebuild, not just
-# before the key push.
-#
-#   push-host-keys.sh --all [--dry-run] [--skip-git-check]
-#   push-host-keys.sh <target> [--dry-run] [--skip-git-check]
-#
-#   --all              Push to every reachable managed host. Default when no
-#                      target is given.
-#   <target>           Push to one flake target only (e.g. lxc-server).
-#   --dry-run          Print what would be done; write nothing.
-#   --skip-git-check   Skip the commit/push check. Use only when the remote
-#                      already has the current .sops.yaml/secrets/*.yaml.
-#
-# SSH: connects as SSH_USER@<hostname> (default: nixos, the user with the
-# admin authorized key), then installs files via sudo -S (reads the sudo
-# password from stdin). The password is prompted once at startup and reused
-# for every host -- no PTY or terminal required on the remote side.
-# Hosts are reached at their bare hostname (relies on LAN DNS/mDNS).
-set -euo pipefail
-
-repo_root="$(cd "$(dirname "$0")/../.." && pwd)"
-keydir="${repo_root}/host-keys"
-
-# shellcheck source=../env.sh
-source "${repo_root}/scripts/env.sh"
-# shellcheck source=../lib/nix-eval.sh
-source "${repo_root}/scripts/lib/nix-eval.sh"
-
-: "${SSH_USER:=nixos}"
-SSH_OPTS=(-o StrictHostKeyChecking=no -o BatchMode=yes -o ConnectTimeout=5)
-
-dry_run=0
-skip_git_check=0
-sudo_password=""
-
-usage() {
-  cat <<EOF
-Usage: $0 [--all | <target>] [--dry-run] [--skip-git-check]
-
-  --all              Push to every reachable managed host. Default when no
-                     target is given.
-  <target>           Push to one flake target only (e.g. lxc-server).
-  --dry-run          Print what would be done; write nothing.
-  --skip-git-check   Skip the check that .sops.yaml/secrets/*.yaml are
-                     committed and pushed to the remote repo.
-
-Environment:
-  SSH_USER           SSH username (default: nixos).
-  SUDO_PASS          Sudo password (skips the interactive prompt; useful
-                     when calling from another script).
-EOF
-}
-
-# Prompt for the sudo password once; store it for all _do_push calls.
-# Accepts SUDO_PASS from the environment to allow non-interactive callers.
-prompt_sudo_password() {
-  [[ "$dry_run" -eq 1 ]] && return
-  if [[ -n "${SUDO_PASS:-}" ]]; then
-    sudo_password="$SUDO_PASS"
-    return
-  fi
-  # read exits non-zero when stdin is not a terminal (e.g. CI, background
-  # agents). Catch that and give a clear message rather than a silent exit.
-  if ! read -r -s -p "sudo password for ${SSH_USER} on remote hosts: " sudo_password; then
-    echo >&2
-    echo "ERROR: stdin is not a terminal -- cannot prompt for sudo password." >&2
-    echo "       Set SUDO_PASS=<password> in the environment and re-run." >&2
-    exit 1
-  fi
-  echo >&2
-}
-
-locally_managed_hosts() {
-  for f in "${keydir}"/*_ssh_host_ed25519_key.pub; do
-    [[ -e "$f" ]] || continue
-    basename "$f" _ssh_host_ed25519_key.pub
-  done
-}
-
-# --- git state check/fix --------------------------------------------------
-# Hosts rebuild from the remote Gitea flake:
-#   nixos-rebuild switch --flake "git+https://<gitea>/nixos.git#<target>"
-# so .sops.yaml (updated recipients) and secrets/*.yaml (re-encrypted DEKs)
-# must be committed and pushed before any rebuild can succeed. This check
-# catches the common case where --regenerate-all-keys was just run but the
-# resulting diff hasn't been committed/pushed yet.
-ensure_remote_current() {
-  [[ "$skip_git_check" -eq 1 ]] && return
-
-  cd "$repo_root"
-
-  local dirty_unstaged dirty_staged
-  dirty_unstaged="$(git diff --name-only -- .sops.yaml secrets/ 2>/dev/null || true)"
-  dirty_staged="$(git diff --cached --name-only -- .sops.yaml secrets/ 2>/dev/null || true)"
-
-  if [[ -n "$dirty_unstaged" || -n "$dirty_staged" ]]; then
-    echo "Uncommitted changes in sops-managed files:"
-    [[ -n "$dirty_unstaged" ]] && sed 's/^/  (unstaged) /' <<<"$dirty_unstaged"
-    [[ -n "$dirty_staged"   ]] && sed 's/^/  (staged)   /' <<<"$dirty_staged"
-    echo
-    if [[ "$dry_run" -eq 1 ]]; then
-      echo "[dry-run] would prompt to commit .sops.yaml/secrets/ before continuing."
-    else
-      read -rp "Commit .sops.yaml + secrets/ now? [y/N]: " ans
-      if [[ "$ans" =~ ^[Yy]$ ]]; then
-        git add -- .sops.yaml secrets/
-        git commit -m "secrets: update recipients and re-encrypt for host key changes"
-        echo "Committed."
-      else
-        echo "Continuing with uncommitted changes -- the remote won't have the"
-        echo "updated recipients until you commit and push."
-      fi
-    fi
-    echo
-  fi
-
-  # Check if we're ahead of the remote tracking branch
-  local ahead
-  ahead="$(git rev-list --count '@{upstream}..HEAD' 2>/dev/null || echo "")"
-  if [[ -z "$ahead" ]]; then
-    echo "NOTE: no remote tracking branch found -- skipping push check."
-    echo "      Ensure the remote has the current .sops.yaml/secrets/ before"
-    echo "      triggering nixos-rebuild on any host."
-    echo
-    return
-  fi
-
-  if [[ "$ahead" -gt 0 ]]; then
-    echo "Local branch is ${ahead} commit(s) ahead of remote."
-    if [[ "$dry_run" -eq 1 ]]; then
-      echo "[dry-run] would prompt to push before continuing."
-    else
-      read -rp "Push to remote now? [y/N]: " ans
-      if [[ "$ans" =~ ^[Yy]$ ]]; then
-        git push
-        echo "Pushed."
-      else
-        echo "Continuing without pushing -- remember to push before running"
-        echo "nixos-rebuild on any of these hosts."
-      fi
-    fi
-    echo
-  fi
-}
-
-# --- key installation (shared) -------------------------------------------
-_do_push() {
-  local hostname="$1" target="$2"
-  local keyfile="${keydir}/${target}_ssh_host_ed25519_key"
-  local pubfile="${keyfile}.pub"
-
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "  [dry-run] would scp host-keys/${target}_ssh_host_ed25519_key{,.pub} to /tmp/"
-    echo "  [dry-run] would: sudo -S install -m 0600/0644 to /etc/ssh/ and rm /tmp copies"
-    return
-  fi
-
-  # Upload to /tmp (writable as nixos, no privilege needed)
-  scp -o StrictHostKeyChecking=no \
-    "$keyfile" "${SSH_USER}@${hostname}:/tmp/push_ed25519_key"
-  scp -o StrictHostKeyChecking=no \
-    "$pubfile" "${SSH_USER}@${hostname}:/tmp/push_ed25519_key.pub"
-
-  # Install via sudo -S: the password is piped via herestring so no PTY is
-  # needed on either side. -p '' suppresses sudo's own prompt string.
-  ssh -o StrictHostKeyChecking=no "${SSH_USER}@${hostname}" \
-    "sudo -S -p '' bash -c '
-      install -m 0600 /tmp/push_ed25519_key     /etc/ssh/ssh_host_ed25519_key
-      install -m 0644 /tmp/push_ed25519_key.pub /etc/ssh/ssh_host_ed25519_key.pub
-      rm -f /tmp/push_ed25519_key /tmp/push_ed25519_key.pub
-      echo \"  [ok] host key installed\"
-    '" <<< "$sudo_password"
-
-  # Drop the stale known_hosts entry for this host (public key just changed)
-  ssh-keygen -R "$hostname" 2>/dev/null || true
-
-  echo "  Done. Run nixos-rebuild switch on ${hostname} to activate."
-}
-
-# --- single named target --------------------------------------------------
-push_target() {
-  local target="$1"
-  local keyfile="${keydir}/${target}_ssh_host_ed25519_key"
-
-  if [[ ! -f "$keyfile" ]]; then
-    echo "ERROR: host-keys/${target}_ssh_host_ed25519_key not found." >&2
-    echo "       This target may not be locally managed (e.g. &${target} was" >&2
-    echo "       registered from the host's real SSH key, not generated here)." >&2
-    exit 1
-  fi
-
-  local hostname
-  hostname="$(flake_target_hostname "$repo_root" "$target")"
-  if [[ -z "$hostname" ]]; then
-    echo "ERROR: cannot resolve hostname for '${target}' from the flake." >&2
-    exit 1
-  fi
-
-  echo "==> ${target} (→ ${hostname})"
-
-  if ! ssh "${SSH_OPTS[@]}" "${SSH_USER}@${hostname}" true 2>/dev/null; then
-    echo "  SKIP: ${SSH_USER}@${hostname} unreachable."
-    return
-  fi
-
-  # Sanity-check that /etc/flake-target on the host agrees
-  local live_target
-  live_target="$(ssh "${SSH_OPTS[@]}" "${SSH_USER}@${hostname}" \
-    "cat /etc/flake-target 2>/dev/null || true")"
-  if [[ -n "$live_target" && "$live_target" != "$target" ]]; then
-    echo "  WARN: host reports /etc/flake-target='${live_target}', not '${target}'."
-    echo "       Pushing the key you specified (${target}) anyway."
-  fi
-
-  _do_push "$hostname" "$target"
-}
-
-# --- all managed hosts ----------------------------------------------------
-# For each unique hostname derived from managed targets, SSHes in and reads
-# /etc/flake-target to determine which key to push -- handles the case where
-# multiple targets share a hostname (e.g. lxc-server and proxmox-server both
-# resolve to "server"; only one is actually running).
-push_all() {
-  mapfile -t managed < <(locally_managed_hosts)
-  if [[ "${#managed[@]}" -eq 0 ]]; then
-    echo "No managed keys in host-keys/ -- nothing to push."
-    return
-  fi
-
-  echo "Pushing to all reachable managed hosts..."
-  echo
-
-  declare -A seen_hostnames=()
-  local t hostname
-  for t in "${managed[@]}"; do
-    hostname="$(flake_target_hostname "$repo_root" "$t" 2>/dev/null || true)"
-    [[ -z "$hostname" ]] && continue
-    [[ -n "${seen_hostnames[$hostname]+x}" ]] && continue
-    seen_hostnames["$hostname"]=1
-
-    echo "==> checking ${hostname}"
-
-    if ! ssh "${SSH_OPTS[@]}" "${SSH_USER}@${hostname}" true 2>/dev/null; then
-      echo "  SKIP: ${SSH_USER}@${hostname} unreachable."
-      continue
-    fi
-
-    # Ask the host which flake target it actually is
-    local live_target
-    live_target="$(ssh "${SSH_OPTS[@]}" "${SSH_USER}@${hostname}" \
-      "cat /etc/flake-target 2>/dev/null || true")"
-
-    if [[ -z "$live_target" ]]; then
-      echo "  SKIP: no /etc/flake-target on host -- can't determine which key to push."
-      continue
-    fi
-
-    local live_keyfile="${keydir}/${live_target}_ssh_host_ed25519_key"
-    if [[ ! -f "$live_keyfile" ]]; then
-      echo "  SKIP: host is '${live_target}' but no host-keys/${live_target}_... (hand-registered key, not managed here)."
-      continue
-    fi
-
-    echo "  target: ${live_target}"
-    _do_push "$hostname" "$live_target"
-  done
-}
-
-# --- main -----------------------------------------------------------------
-mode="all"
-target_arg=""
-extra_args=()
-
-for arg in "$@"; do
-  case "$arg" in
-    --dry-run)        dry_run=1 ;;
-    --skip-git-check) skip_git_check=1 ;;
-    --all)            mode="all" ;;
-    -h|--help)        usage; exit 0 ;;
-    --*)              echo "Unknown option: $arg" >&2; usage >&2; exit 1 ;;
-    *)                extra_args+=("$arg") ;;
-  esac
-done
-
-if [[ "${#extra_args[@]}" -gt 1 ]]; then
-  echo "ERROR: specify at most one target (or --all)." >&2
-  usage >&2; exit 1
-elif [[ "${#extra_args[@]}" -eq 1 ]]; then
-  mode="single"
-  target_arg="${extra_args[0]}"
-fi
-
-[[ "$dry_run" -eq 1 ]] && { echo "[dry-run] no changes will be made"; echo; }
-
-nix_extra_opts
-ensure_remote_current
-prompt_sudo_password
-
-if [[ "$mode" == "single" ]]; then
-  push_target "$target_arg"
-else
-  push_all
-fi
-
-echo
-if [[ "$dry_run" -eq 1 ]]; then
-  echo "[dry-run] Nothing was changed. Re-run without --dry-run to apply."
-else
-  echo "Key push complete. For each updated host, run nixos-rebuild switch to"
-  echo "apply the config and let sops-nix decrypt secrets with the new key."
-fi

scripts/secrets/rotate-admin-key.sh

@@ -1,193 +0,0 @@
-#!/usr/bin/env bash
-# Rotates the &admin sops age key: decrypts with a backed-up copy of the
-# key CURRENTLY trusted as &admin, replaces .sops.yaml's &admin entry with
-# a new key already present in this environment, and re-encrypts every
-# secrets/*.yaml for the new recipient set. After this runs, the old key
-# can no longer decrypt anything -- this is a real, one-way handoff of
-# trust, not a preview.
-#
-# This is the automation for the manual steps create-proxmox-resource.sh /
-# sync-host-keys.sh print when they bootstrap a brand-new, not-yet-trusted
-# age key on a machine that's never had admin access before:
-#
-#   scripts/secrets/rotate-admin-key.sh /path/to/backed-up/admin/keys.txt
-#
-# The backup key's *public* key must match .sops.yaml's current &admin
-# entry -- this script verifies that by deriving it, it doesn't just trust
-# the filename or take it on faith. The new key defaults to wherever sops
-# itself would already look ($SOPS_AGE_KEY_FILE, then the XDG default), so
-# the common case is just pointing this at the restored backup.
-set -euo pipefail
-
-repo_root="$(cd "$(dirname "$0")/../.." && pwd)"
-sops_yaml="${repo_root}/.sops.yaml"
-
-# shellcheck source=../env.sh
-source "${repo_root}/scripts/env.sh"
-# shellcheck source=../lib/sops-age.sh
-source "${repo_root}/scripts/lib/sops-age.sh"
-
-# sops resolves .sops.yaml by walking up from the process's cwd, not from
-# the target file's own path -- if this script were invoked from somewhere
-# other than the repo root (or from inside another checkout/worktree that
-# happens to have its own .sops.yaml), `sops updatekeys` would silently
-# re-encrypt against the WRONG config's recipient list instead of this
-# repo's. Pin cwd here so every sops/age call below is unambiguous
-# regardless of where the caller's shell started out.
-cd "$repo_root"
-
-usage() {
-  cat <<EOF
-Usage: $0 <path-to-backed-up-admin-key> [--new-key-file <path>] [--dry-run]
-
-  <path-to-backed-up-admin-key>  age identity file for the key CURRENTLY
-                                 trusted as &admin. Only ever read -- never
-                                 copied or modified.
-  --new-key-file <path>          age identity file for the key to promote
-                                 to &admin. Defaults to \$SOPS_AGE_KEY_FILE,
-                                 then
-                                 \${XDG_CONFIG_HOME:-\$HOME/.config}/sops/age/keys.txt
-                                 (sops/age's own default resolution order).
-  --dry-run                      Print what would change; touches nothing
-                                  (.sops.yaml untouched, no sops updatekeys
-                                  calls).
-EOF
-}
-
-dry_run=0
-new_key_file="$DEFAULT_SOPS_AGE_KEY_FILE"
-args=()
-
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-    --dry-run)
-      dry_run=1
-      shift
-      ;;
-    --new-key-file)
-      new_key_file="${2:?--new-key-file requires a path}"
-      shift 2
-      ;;
-    -h | --help)
-      usage
-      exit 0
-      ;;
-    --*)
-      echo "Unknown option: $1" >&2
-      usage >&2
-      exit 1
-      ;;
-    *)
-      args+=("$1")
-      shift
-      ;;
-  esac
-done
-
-if [[ "${#args[@]}" -ne 1 ]]; then
-  usage >&2
-  exit 1
-fi
-backup_key="${args[0]}"
-
-[[ -s "$backup_key" ]] || { echo "ERROR: backup key file not found or empty: ${backup_key}" >&2; exit 1; }
-[[ -s "$new_key_file" ]] || { echo "ERROR: new key file not found or empty: ${new_key_file}" >&2; exit 1; }
-
-nix_extra_opts
-
-echo "==> Deriving public keys..."
-old_pub="$(age_pubkey_from_identity_file "$backup_key")"
-new_pub="$(age_pubkey_from_identity_file "$new_key_file")"
-echo "    backup (old admin) key: ${old_pub}"
-echo "    new admin key:          ${new_pub}"
-
-if [[ "$old_pub" == "$new_pub" ]]; then
-  echo "ERROR: backup key and new key are identical -- nothing to rotate." >&2
-  exit 1
-fi
-
-current_admin_pub="$(sops_yaml_admin_pubkey "$sops_yaml")"
-if [[ -z "$current_admin_pub" ]]; then
-  echo "ERROR: couldn't find a '&admin age1...' line in ${sops_yaml}." >&2
-  exit 1
-fi
-
-if [[ "$current_admin_pub" != "$old_pub" ]]; then
-  echo "ERROR: ${backup_key} doesn't match the current &admin key in .sops.yaml." >&2
-  echo "  .sops.yaml &admin: ${current_admin_pub}" >&2
-  echo "  backup key pubkey: ${old_pub}" >&2
-  echo "Wrong backup file, or .sops.yaml has already moved on -- not touching anything." >&2
-  exit 1
-fi
-
-mapfile -t secrets_files < <(find "${repo_root}/secrets" -maxdepth 1 -name '*.yaml' | sort)
-if [[ "${#secrets_files[@]}" -eq 0 ]]; then
-  echo "ERROR: no secrets/*.yaml files found under ${repo_root}/secrets." >&2
-  exit 1
-fi
-
-# sops_can_decrypt <key-file> <secrets-file>: used both to confirm the
-# backup key still works before touching anything, and again after
-# rotation to confirm the new key does too.
-sops_can_decrypt() {
-  local key_file="$1" secrets_file="$2"
-  SOPS_AGE_KEY_FILE="$key_file" nix-shell "${NIX_OPTS[@]}" -p sops --run \
-    "sops -d '${secrets_file}'" >/dev/null
-}
-
-echo "==> Confirming the backup key can actually decrypt..."
-if ! sops_can_decrypt "$backup_key" "${secrets_files[0]}"; then
-  echo "ERROR: backup key failed to decrypt $(basename "${secrets_files[0]}") -- aborting." >&2
-  exit 1
-fi
-echo "    OK: decrypted $(basename "${secrets_files[0]}")"
-
-if [[ "$dry_run" -eq 1 ]]; then
-  echo
-  echo "[dry-run] would replace .sops.yaml's &admin line:"
-  echo "[dry-run]   - ${current_admin_pub}"
-  echo "[dry-run]   + ${new_pub}"
-  echo "[dry-run] would then re-encrypt (sops updatekeys --yes) for the new recipient set:"
-  for f in "${secrets_files[@]}"; do
-    echo "[dry-run]   secrets/$(basename "$f")"
-  done
-  echo
-  echo "[dry-run] Nothing was changed. Re-run without --dry-run to apply this."
-  exit 0
-fi
-
-echo "==> Rotating .sops.yaml's &admin key..."
-sed -i "s|^  - &admin age1[a-z0-9]*|  - \&admin ${new_pub}|" "$sops_yaml"
-grep -qF "$new_pub" "$sops_yaml" || {
-  echo "ERROR: sed edit didn't take -- .sops.yaml left unchanged, check it by hand." >&2
-  exit 1
-}
-echo "    Updated."
-
-echo "==> Re-encrypting secrets/*.yaml for the new recipient set..."
-for f in "${secrets_files[@]}"; do
-  echo "==> $(basename "$f")"
-  sops_updatekeys "$f" "$backup_key"
-done
-
-echo "==> Verifying the new key can decrypt everything..."
-for f in "${secrets_files[@]}"; do
-  if ! sops_can_decrypt "$new_key_file" "$f"; then
-    echo "ERROR: new key failed to decrypt $(basename "$f") after rotation -- investigate before committing." >&2
-    exit 1
-  fi
-  echo "    OK: $(basename "$f")"
-done
-
-cat <<EOF
-
-Done. .sops.yaml's &admin key is now:
-  ${new_pub}
-
-The old key (${old_pub}) can no longer decrypt any secrets/*.yaml
-re-encrypted above.
-
-Review the diff, then commit:
-  git add .sops.yaml secrets/*.yaml
-  git commit -m "Rotate sops admin age key"
-EOF

scripts/secrets/sync-host-keys.sh

@@ -1,459 +0,0 @@
-#!/usr/bin/env bash
-# Manages host-keys/ + .sops.yaml + secrets/*.yaml recipients together, so
-# a flake target's SSH host key and its sops registration never drift out
-# of sync with each other or with the flake itself.
-#
-#   sync-host-keys.sh --all                Generate/register every flake
-#                                           target missing a key.
-#   sync-host-keys.sh <target>              Same, for just one target.
-#   sync-host-keys.sh --remove              Interactively remove one
-#                                           locally-managed key.
-#   sync-host-keys.sh --regenerate-all-keys Remove and freshly regenerate
-#                                           every locally-managed key.
-#
-# "Generate/register" is idempotent and additive only: an existing
-# host-keys/ file is never touched, and .sops.yaml only ever gains an
-# anchor/alias it doesn't already have -- safe to re-run any time, e.g.
-# right after adding a new host to flake.nix.
-#
-# --remove and --regenerate-all-keys only ever operate on anchors that have
-# a corresponding host-keys/<name>_ssh_host_ed25519_key file. Anchors
-# without one (&admin, and any anchor for an already-deployed host whose
-# real /etc/ssh key was registered by hand, e.g. &docker/&server/&nix-cache
-# today) are never listed, removed, or regenerated -- this tooling only
-# ever touches keys it itself manages.
-set -euo pipefail
-
-repo_root="$(cd "$(dirname "$0")/../.." && pwd)"
-sops_yaml="${repo_root}/.sops.yaml"
-keydir="${repo_root}/host-keys"
-editor="${repo_root}/scripts/lib/sync-host-keys-edit-sops.py"
-
-# shellcheck source=../env.sh
-source "${repo_root}/scripts/env.sh"
-# shellcheck source=../lib/nix-eval.sh
-source "${repo_root}/scripts/lib/nix-eval.sh"
-# shellcheck source=../lib/ssh-host-keys.sh
-source "${repo_root}/scripts/lib/ssh-host-keys.sh"
-# shellcheck source=../lib/sops-age.sh
-source "${repo_root}/scripts/lib/sops-age.sh"
-# shellcheck source=../lib/confirm.sh
-source "${repo_root}/scripts/lib/confirm.sh"
-
-mkdir -p "$keydir"
-
-usage() {
-  cat <<EOF
-Usage: $0 --all [--dry-run]
-       $0 <flake-target> [--dry-run]
-       $0 --remove [--dry-run]
-       $0 --regenerate-all-keys [--dry-run]
-
-  --all                    Generate + register a host key for every flake
-                            target that's missing one.
-  <flake-target>            Same, for just one target (e.g. lxc-server).
-                            Reports if it already has one.
-  --remove                  Interactively pick one locally-managed key to
-                            remove from .sops.yaml and host-keys/.
-  --regenerate-all-keys     Remove every locally-managed key and generate
-                            fresh replacements for every current flake
-                            target. Destructive -- requires typed
-                            confirmation.
-  --dry-run                 Combine with any of the above: print what would
-                            change (host-keys/ files, .sops.yaml anchors and
-                            key_groups, which secrets/*.yaml would be
-                            re-encrypted) without touching anything. No keys
-                            generated, no files written, no sops calls,
-                            no prompts for confirmation.
-EOF
-}
-
-# --- step 0: make sure we can actually decrypt anything at all -------------
-#
-# Registering a host means editing .sops.yaml and then running
-# `sops updatekeys`, which has to decrypt each secrets file with an
-# existing recipient's key before it can re-encrypt it for the new one.
-# Check this before doing anything else, the same order sops/age itself
-# resolves a usable key in: SOPS_AGE_KEY (inline), then SOPS_AGE_KEY_FILE,
-# then the XDG default path.
-ensure_admin_decrypt_key() {
-  if [[ -n "${SOPS_AGE_KEY:-}" ]]; then
-    echo "Using SOPS_AGE_KEY from the environment."
-    return
-  fi
-
-  local key_file="$DEFAULT_SOPS_AGE_KEY_FILE"
-
-  if [[ -s "$key_file" ]]; then
-    echo "Found existing sops age key at ${key_file}."
-    return
-  fi
-
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] No sops age decryption key found (checked \$SOPS_AGE_KEY, \$SOPS_AGE_KEY_FILE, ${key_file})."
-    echo "[dry-run] Would generate a new one here -- continuing the dry run without one; any"
-    echo "[dry-run] 'would re-encrypt' output below couldn't actually run for real yet."
-    return
-  fi
-
-  echo "No sops age decryption key found (checked \$SOPS_AGE_KEY, \$SOPS_AGE_KEY_FILE, ${key_file})."
-  echo "Generating a new one at ${key_file}..."
-  mkdir -p "$(dirname "$key_file")"
-  nix-shell "${NIX_OPTS[@]}" -p age --run "age-keygen -o '${key_file}'" 2>&1 | grep -v "^Public key:" || true
-  local new_pub
-  new_pub="$(age_pubkey_from_identity_file "$key_file")"
-
-  cat <<EOF
-
-A brand-new age key was just generated -- it cannot decrypt anything that
-already exists in secrets/*.yaml, since nothing was ever encrypted for it.
-That trust can't be bootstrapped automatically (nobody can decrypt a file
-for a recipient that didn't exist when it was last encrypted).
-
-To actually use this key:
-  1. Have someone who currently CAN decrypt replace the &admin entry in
-     .sops.yaml with this public key:
-       ${new_pub}
-  2. They re-encrypt every secrets/*.yaml:
-       sops updatekeys --yes secrets/common.yaml
-       sops updatekeys --yes secrets/nix-cache.yaml
-       sops updatekeys --yes secrets/server.yaml
-  3. Re-run this script.
-
-Exiting without making any other changes.
-EOF
-  exit 1
-}
-
-discover_targets() {
-  # installer is the one nixosConfigurations target that doesn't import
-  # sops-nix at all (see CLAUDE.md's "Security Notes" -- hardcoded login
-  # password instead) -- config.sops.secrets doesn't exist for it.
-  list_flake_targets "$repo_root" | grep -v '^installer$'
-}
-
-locally_managed_hosts() {
-  for f in "$keydir"/*_ssh_host_ed25519_key.pub; do
-    [[ -e "$f" ]] || continue
-    basename "$f" _ssh_host_ed25519_key.pub
-  done
-}
-
-add_keys_json="[]"
-add_aliases_json="[]"
-dry_run=0
-
-queue_host_sync() {
-  local host="$1"
-  local keyfile="${keydir}/${host}_ssh_host_ed25519_key"
-  local has_local_key=0 has_anchor=0
-  [[ -f "$keyfile" ]] && has_local_key=1
-  grep -qE "^  - &${host} age1" "$sops_yaml" && has_anchor=1
-
-  if [[ "$has_local_key" -eq 0 && "$has_anchor" -eq 1 ]]; then
-    echo "SKIP ${host}: .sops.yaml already has an &${host} anchor, but"
-    echo "     host-keys/${host}_ssh_host_ed25519_key is missing locally."
-    echo "     Not generating a replacement -- it wouldn't match whatever's"
-    echo "     already registered (and possibly deployed). Remove the"
-    echo "     &${host} line from .sops.yaml first if you really want a"
-    echo "     fresh key, then re-run."
-    return 1
-  fi
-
-  if [[ "$has_local_key" -eq 0 ]]; then
-    if [[ "$dry_run" -eq 1 ]]; then
-      echo "[dry-run] ${host}: would generate host key"
-    else
-      echo "==> ${host}: generating host key"
-      generate_host_ed25519_key "$host" "$keyfile"
-    fi
-  else
-    echo "==> ${host}: host key already present"
-  fi
-
-  if [[ "$has_anchor" -eq 0 ]]; then
-    local age_pub
-    if [[ "$dry_run" -eq 1 ]]; then
-      age_pub="dry-run-placeholder-not-a-real-key"
-    else
-      age_pub="$(ssh_pubkey_to_age "${keyfile}.pub")"
-    fi
-    add_keys_json="$(jq --arg host "$host" --arg key "$age_pub" \
-      '. + [{host: $host, age_key: $key}]' <<<"$add_keys_json")"
-  fi
-
-  echo "==> ${host}: checking which secrets files it references"
-  local basenames
-  mapfile -t basenames < <(
-    nix eval --json --no-use-registries --no-accept-flake-config \
-      "${repo_root}#nixosConfigurations.${host}.config.sops.secrets" \
-      --apply 'builtins.mapAttrs (n: v: baseNameOf v.sopsFile)' \
-    | jq -r '[.[]] | unique | .[]'
-  )
-  local basename
-  for basename in "${basenames[@]}"; do
-    add_aliases_json="$(jq --arg host "$host" --arg basename "$basename" \
-      '. + [{host: $host, basename: $basename}]' <<<"$add_aliases_json")"
-  done
-}
-
-# In dry-run, this runs the exact same edit logic (so idempotency/what's-
-# actually-new is determined for real, not guessed) but against a scratch
-# copy of .sops.yaml that's discarded afterward -- the real file is never
-# opened for writing, and `sops updatekeys` never runs.
-apply_edit_plan() {
-  local plan="$1"
-  local target="$sops_yaml"
-  local tmpfile=""
-  if [[ "$dry_run" -eq 1 ]]; then
-    tmpfile="$(mktemp)"
-    cp "$sops_yaml" "$tmpfile"
-    target="$tmpfile"
-  fi
-
-  local result
-  result="$(echo "$plan" | nix-shell "${NIX_OPTS[@]}" -p python3 --run "python3 '${editor}' '${target}'")"
-  [[ -n "$tmpfile" ]] && rm -f "$tmpfile"
-
-  local added removed changed
-  added="$(jq -r '.added_keys[]?' <<<"$result")"
-  removed="$(jq -r '.removed_keys[]?' <<<"$result")"
-  changed="$(jq -r '.changed_secrets_files[]?' <<<"$result")"
-
-  if [[ -z "$added" && -z "$removed" && -z "$changed" ]]; then
-    echo "Nothing changed in .sops.yaml."
-    return
-  fi
-
-  local prefix=""
-  [[ "$dry_run" -eq 1 ]] && prefix="[dry-run] would "
-
-  [[ -n "$added" ]] && echo "${prefix}Add .sops.yaml anchors: $(tr '\n' ' ' <<<"$added")"
-  [[ -n "$removed" ]] && echo "${prefix}Remove .sops.yaml anchors: $(tr '\n' ' ' <<<"$removed")"
-
-  if [[ -n "$changed" ]]; then
-    if [[ "$dry_run" -eq 1 ]]; then
-      echo "[dry-run] would re-encrypt:"
-      while IFS= read -r basename; do
-        [[ -z "$basename" ]] && continue
-        echo "  secrets/${basename}"
-      done <<<"$changed"
-    else
-      echo "Re-encrypting affected secrets files..."
-      while IFS= read -r basename; do
-        [[ -z "$basename" ]] && continue
-        echo "==> secrets/${basename}"
-        sops_updatekeys "${repo_root}/secrets/${basename}"
-      done <<<"$changed"
-    fi
-  fi
-}
-
-flush_additions() {
-  if [[ "$add_keys_json" == "[]" && "$add_aliases_json" == "[]" ]]; then
-    echo "Nothing to do -- every requested target already has a fully registered host key."
-    return
-  fi
-  echo
-  echo "Applying .sops.yaml edits..."
-  local plan
-  plan="$(jq -n --argjson add_keys "$add_keys_json" --argjson add_aliases "$add_aliases_json" \
-    '{add_keys: $add_keys, add_aliases: $add_aliases}')"
-  apply_edit_plan "$plan"
-  echo
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] Nothing was changed. Re-run without --dry-run to apply this."
-  else
-    echo "Done. Review the .sops.yaml / secrets/*.yaml diff, then commit and push --"
-    echo "the flake build the installer uses has to see the new recipient(s) before"
-    echo "any of these hosts can decrypt their secrets on first boot."
-  fi
-}
-
-cmd_all() {
-  echo "Discovering flake targets..."
-  local targets
-  mapfile -t targets < <(discover_targets)
-  local host
-  for host in "${targets[@]}"; do
-    queue_host_sync "$host" || true
-  done
-  flush_additions
-}
-
-cmd_target() {
-  local host="$1"
-  local targets
-  mapfile -t targets < <(discover_targets)
-  if ! printf '%s\n' "${targets[@]}" | grep -qxF "$host"; then
-    echo "ERROR: '${host}' is not a current nixosConfigurations target." >&2
-    echo "Current targets:" >&2
-    printf '  %s\n' "${targets[@]}" >&2
-    exit 1
-  fi
-  queue_host_sync "$host" || exit 1
-  flush_additions
-}
-
-cmd_remove() {
-  local hosts
-  mapfile -t hosts < <(locally_managed_hosts)
-  if [[ "${#hosts[@]}" -eq 0 ]]; then
-    echo "No locally-managed keys in host-keys/ -- nothing to remove."
-    return
-  fi
-
-  echo "Locally-managed keys:"
-  local i=1 host
-  for host in "${hosts[@]}"; do
-    local registered="not registered in .sops.yaml"
-    grep -qE "^  - &${host} age1" "$sops_yaml" && registered="registered in .sops.yaml"
-    printf '  %d) %s (%s)\n' "$i" "$host" "$registered"
-    i=$((i + 1))
-  done
-
-  local choice
-  read -rp "Remove which one? (number, or blank to cancel): " choice
-  if [[ -z "$choice" ]]; then
-    echo "Cancelled."
-    return
-  fi
-  if ! [[ "$choice" =~ ^[0-9]+$ ]] || (( choice < 1 || choice > ${#hosts[@]} )); then
-    echo "ERROR: invalid selection." >&2
-    exit 1
-  fi
-  local target="${hosts[$((choice - 1))]}"
-
-  if [[ "$dry_run" -ne 1 ]]; then
-    read -rp "Really remove '${target}'? Its host-keys/ files will be deleted and it will lose access to every secrets file it can currently decrypt. (y/N): " confirm
-    if [[ ! "$confirm" =~ ^[Yy]$ ]]; then
-      echo "Cancelled."
-      return
-    fi
-  fi
-
-  local plan
-  plan="$(jq -n --arg host "$target" \
-    '{remove_keys: [$host], remove_aliases_for_hosts: [$host]}')"
-  apply_edit_plan "$plan"
-
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] would delete host-keys/${target}_ssh_host_ed25519_key(.pub)."
-    echo "[dry-run] Nothing was changed. Re-run without --dry-run to apply this."
-  else
-    rm -f "${keydir}/${target}_ssh_host_ed25519_key" "${keydir}/${target}_ssh_host_ed25519_key.pub"
-    echo "Removed host-keys/${target}_ssh_host_ed25519_key(.pub)."
-    echo
-    echo "Review the diff, then commit and push."
-  fi
-}
-
-cmd_regenerate_all() {
-  local hosts
-  mapfile -t hosts < <(locally_managed_hosts)
-  if [[ "${#hosts[@]}" -eq 0 ]]; then
-    echo "No locally-managed keys in host-keys/ -- nothing to regenerate."
-    return
-  fi
-
-  echo "This will remove and freshly regenerate ALL locally-managed keys:"
-  printf '  %s\n' "${hosts[@]}"
-  echo
-  echo "After regenerating, each host needs its new key before it can decrypt secrets:"
-  echo "  • Already running: push the key before rebuilding:"
-  echo "      scripts/secrets/push-host-keys.sh --all"
-  echo "  • Not yet deployed: rebuild the install image with the new keys baked in"
-  echo "      (see docs/auto-installer.md)."
-
-  if [[ "$dry_run" -ne 1 ]]; then
-    if ! confirm_typed "REGENERATE" "Type REGENERATE to confirm: "; then
-      echo "Cancelled."
-      return
-    fi
-  fi
-
-  echo
-  local hosts_json
-  hosts_json="$(printf '%s\n' "${hosts[@]}" | jq -R . | jq -s .)"
-  local plan
-  plan="$(jq -n --argjson hosts "$hosts_json" \
-    '{remove_keys: $hosts, remove_aliases_for_hosts: $hosts}')"
-  apply_edit_plan "$plan"
-
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] would delete ${#hosts[@]} host-keys/ file pair(s)."
-    echo "[dry-run] would then generate fresh replacements for the same hosts"
-    echo "[dry-run] (not simulated further here -- run without --dry-run, or"
-    echo "[dry-run] preview a specific target with: $0 <target> --dry-run)."
-    echo
-    echo "[dry-run] Nothing was changed. Re-run without --dry-run to apply this."
-    return
-  fi
-
-  echo "Removing existing keys..."
-  local host
-  for host in "${hosts[@]}"; do
-    rm -f "${keydir}/${host}_ssh_host_ed25519_key" "${keydir}/${host}_ssh_host_ed25519_key.pub"
-  done
-  echo "Removed ${#hosts[@]} host-keys/ file pair(s)."
-
-  echo
-  echo "Regenerating fresh keys for every current flake target..."
-  cmd_all
-
-  echo
-  echo "Next steps:"
-  echo "  1. Commit and push .sops.yaml + secrets/ so the remote flake is current."
-  echo "  2. Push the new host key to each already-running managed host:"
-  echo "       scripts/secrets/push-host-keys.sh --all"
-  echo "     (this also prompts to commit/push if step 1 wasn't done yet)"
-  echo "  3. Run nixos-rebuild switch on each updated host."
-  echo "  4. For hosts not yet deployed, rebuild the install image (see"
-  echo "     docs/auto-installer.md)."
-}
-
-main() {
-  local args=()
-  local arg
-  for arg in "$@"; do
-    if [[ "$arg" == "--dry-run" ]]; then
-      dry_run=1
-    else
-      args+=("$arg")
-    fi
-  done
-  set -- "${args[@]+"${args[@]}"}"
-
-  if [[ "$dry_run" -eq 1 ]]; then
-    echo "[dry-run] no changes will be made"
-    echo
-  fi
-
-  nix_extra_opts
-  ensure_admin_decrypt_key
-
-  case "${1:-}" in
-    --all)
-      cmd_all
-      ;;
-    --remove)
-      cmd_remove
-      ;;
-    --regenerate-all-keys)
-      cmd_regenerate_all
-      ;;
-    -h | --help | "")
-      usage
-      ;;
-    --*)
-      echo "Unknown option: $1" >&2
-      usage >&2
-      exit 1
-      ;;
-    *)
-      cmd_target "$1"
-      ;;
-  esac
-}
-
-main "$@"

scripts/secrets/sync-nix-cache-host-key.sh

@@ -1,110 +0,0 @@
-#!/usr/bin/env bash
-# Detects and fixes drift between the ed25519 SSH host key nix-cache is
-# actually serving right now and vars.nixCacheHostKey (variables.nix) --
-# the value modules/nix-cache/remote-builder-client.nix bakes into every
-# client's declarative programs.ssh.knownHosts, and
-# scripts/proxmox/configure-nix-cache-client.sh hardcodes as its own
-# default for non-NixOS clients.
-#
-# This value has no automatic source of truth: nix-cache's host key is
-# generated once (first boot / container recreate) and never touches this
-# repo again unless someone remembers to update it by hand afterwards. It
-# drifted silently once already -- confirmed live: variables.nix recorded
-# a key that no longer matched what nix-cache actually presented, which
-# would fail every real client's SSH host-key verification for
-# distributed builds without ever producing an obvious error pointing
-# back here (a client just sees "Host key verification failed" against
-# *some* key, with no hint that the trusted value itself was stale).
-#
-# codex-maintenance.sh runs this in --check mode on every invocation so
-# that drift surfaces as a warning instead of a future debugging session.
-#
-# Usage:
-#   scripts/secrets/sync-nix-cache-host-key.sh [--check] [--dry-run] [--host <name>]
-#
-#   --check     Only report drift (exit 1 if found, 2 if nix-cache is
-#               unreachable); never writes. For CI/maintenance use.
-#   --dry-run   Show what would change; never writes.
-#   --host      Override the hostname to scan (default: variables.nix's
-#               nixCacheHost / env.sh's NIX_CACHE_HOST).
-set -euo pipefail
-
-repo_root="$(cd "$(dirname "$0")/../.." && pwd)"
-variables_nix="${repo_root}/variables.nix"
-client_script="${repo_root}/scripts/proxmox/configure-nix-cache-client.sh"
-
-# shellcheck source=../env.sh
-source "${repo_root}/scripts/env.sh"
-
-check_only=0
-dry_run=0
-host="${NIX_CACHE_HOST}"
-
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-    --check) check_only=1; shift ;;
-    --dry-run) dry_run=1; shift ;;
-    --host)
-      host="${2:?--host requires a hostname}"
-      shift 2
-      ;;
-    -h|--help)
-      sed -n '2,23p' "$0"
-      exit 0
-      ;;
-    *)
-      echo "ERROR: unknown argument: $1" >&2
-      exit 1
-      ;;
-  esac
-done
-
-current_value="$(grep -oE 'nixCacheHostKey = "[^"]+"' "$variables_nix" | sed -E 's/nixCacheHostKey = "(.*)"/\1/')"
-if [[ -z "$current_value" ]]; then
-  echo "ERROR: couldn't find nixCacheHostKey in $variables_nix" >&2
-  exit 1
-fi
-current_type_blob="$(awk '{print $1, $2}' <<<"$current_value")"
-current_label="$(awk '{print $3}' <<<"$current_value")"
-
-echo "Scanning ${host} for its current ed25519 SSH host key..."
-nix_extra_opts
-scanned="$(nix-shell "${NIX_OPTS[@]}" -p openssh --run "ssh-keyscan -t ed25519 -T 5 '${host}'" 2>/dev/null | grep -v '^#' | head -1 || true)"
-if [[ -z "$scanned" ]]; then
-  echo "ERROR: couldn't reach ${host} (or got no ed25519 host key back) via ssh-keyscan." >&2
-  exit 2
-fi
-scanned_type_blob="$(awk '{print $2, $3}' <<<"$scanned")"
-
-if [[ "$current_type_blob" == "$scanned_type_blob" ]]; then
-  echo "Up to date: ${host}'s host key matches variables.nix's nixCacheHostKey."
-  exit 0
-fi
-
-echo "DRIFT DETECTED:"
-echo "  variables.nix has: $current_type_blob"
-echo "  ${host} is now:    $scanned_type_blob"
-
-if [[ "$check_only" -eq 1 ]]; then
-  echo
-  echo "Run 'scripts/secrets/sync-nix-cache-host-key.sh' (no flags) to fix." >&2
-  exit 1
-fi
-
-new_value="${scanned_type_blob} ${current_label}"
-
-if [[ "$dry_run" -eq 1 ]]; then
-  echo "(--dry-run: would update variables.nix and ${client_script##*/} to:)"
-  echo "  $new_value"
-  exit 0
-fi
-
-sed -i "s|nixCacheHostKey = \"[^\"]*\"|nixCacheHostKey = \"${new_value}\"|" "$variables_nix"
-sed -i "s|NIX_CACHE_HOST_KEY:=[^}]*}|NIX_CACHE_HOST_KEY:=${new_value}}|" "$client_script"
-
-echo "Updated variables.nix and ${client_script##*/} to:"
-echo "  $new_value"
-echo
-echo "This only takes effect on already-deployed NixOS clients after their"
-echo "next rebuild (programs.ssh.knownHosts is declarative). Review with"
-echo "'git diff', then run 'bash scripts/codex-maintenance.sh' before committing."

secrets/common.yaml

@@ -1,252 +1,72 @@
 root-hashedPassword: ENC[AES256_GCM,data:Kp0nOZI7vDoLhJHiOJBwJn0rQZ5yhnwapGnAcA+qh8vlDETtFs/iQdetF/2ZxmANf62SviTNd+Ag0q5JIF1996x7onZGXqxgSMCuVzZLBdUlsO5IR0BslWWz47khYGTe4WkUg4NB1itBfQ==,iv:5Sra5vJ79V8hxQT3g9qJ+dOj2W2sumIhqpitqnHjJdk=,tag:3Igu0+8GeUZHqS3fKUVwog==,type:str]
 nixos-hashedPassword: ENC[AES256_GCM,data:pT7tVRN6X4a+DNUgB7fIUUE3CbnetkjxmoSL1PxSU+ktsFU+fB0mEvJjA1uujsGH5Rcztg7YM815+M0Z67ILmHaXbza5DtFacrqhi4/b277xly0SHRX4yOvBwQh6mJG1jn/0O/wvUUIYdw==,iv:bp2nfhC8nFbk6o5iWDAugvbzu7J/a1xayFnBEtkhNpE=,tag:HqWgkIpSrSM/K9OK2WO+VQ==,type:str]
-nix-github-token: ENC[AES256_GCM,data:k1vYz7SqVhzpWa6jTL6NUD8lKOCpHCgTm+HT4IcnbzbSTUZP/bJUYw==,iv:UqAULZnr/4+VcioUDfTwvOSuwM8K9JgGhiApvYQPyoc=,tag:1LKHXhWAO/AHPDIZFBb04A==,type:str]
+nix-github-token: ENC[AES256_GCM,data:OfNRGJg16Ede6EilWUetCs9za+xk5/Lsa3SpVajsqz8PMdA1xQNeCWdX7ZAMdijHClpBhU6ETFGsXvt41O9aORS951uijeGSW7/NH35/bnPISrKdYeBx/+xEiqwH,iv:QGU3v7xOy89uzRTCb1U9ICyJ8XYIpXrUsDt12aL3g2Y=,tag:Bde2wcWNv8H4WLxSEUAodg==,type:str]
 sops:
     age:
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBibGF2a2FRcTRFTk9rQ0NN
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBmaFVBeVp3Zk80TG1OU045
-            TTFoRlBWbGdSMzVVRHYvVFFvVm05ZDZBb1VrCkFoM2dTMEJDMHRKd240OEExWnUv
+            b204QzFYL1psVm1xdlBVYmVIWFpKVnJWbUdvCnJRVGVUbElPYVczeEdkSDU4WGYz
-            RHV2S0taWnl0dS80YVIvTjBpVEk5a0kKLS0tIGF2TkNQdlVJTTNOSnI4cEZCRll3
+            bkliK0dGcitjZnRYUXJQVVpTY2gva0kKLS0tIHBxMDBNYWJrSHAvNlZDWERmbVQ3
-            NE9aSWxVVTlyV2hPQ284cU94Y2hVNEkKhUFgr345o91orzqCzkKdh6dAXlPfwqTJ
+            VDFscTRjdGpLUnk5VVdyTjY5MFNPSW8KX5Or/zoixFulaX8ljY4ke3jdhc3Jaw95
-            su5kATsokLzcyvT/gcOKsDBzO219CJ0cSVmpgVJtImSCJDwUS3A6Ug==
+            4BqrlILGapcOsmWTDkDZBtS81oNvlRnH+xaM2UJSe+nIplNcC+Cl2g==
             -----END AGE ENCRYPTED FILE-----
-          recipient: age1njap586hc0q43kr03g6c8eqhdsmk8zcafkl3f83xwlc2gqhlmfgs4tmwad
+          recipient: age10nd382a9klsn2mrs60emdtsxe43pht3a0m9p29phfrhy0wfyt3vsq9r667
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBGc3cwNzk1d2xDajFqQTNH
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB1ZUZ0bXRGVFMzZzg1TzhE
-            QlhoS0ZqWnJ6b1NoU3EvMlFsTG1oYkVrYTI0CjNEekFrV285aVc2Vk5pc0VHNDBO
+            N3kwYjdEV0tmcVdacVJHZUNXRHo1aHhXczFBCm1WcW51K3NSK25uMUFNb3NRbE9J
-            MndVZHgrbE10TXVOL0I2Y1hKWEJCcm8KLS0tIHRoa2JtNHVLU1YySmlXMnpsY3lh
+            UE00VWNIclhVZHdPUmlNOXI1aGlhck0KLS0tIFphckVmRXZrTmI5K3BUL3NlMTAv
-            R0NTR2szNVhvVy81bHRjLzJSTWNWMEkK26wIFqhVk1fYV79odbslVaFxoDLykRNN
+            OG9RTHNEQXVMcXVWZXZnN2NYZ3hraUUKEXrloIgmADuRpa2YN2GIRYT+YN60pxga
-            ZiOkWewH/JOuIXR260UWAGq4bKXfnUs78mAchh9R2I0F4p/CjGMdQA==
+            bLeVDtBYU+KA+2F8S46o43ZmRTE2MXWlMhnZ35uNR4hgE3auKlIziA==
             -----END AGE ENCRYPTED FILE-----
           recipient: age19gfn2yedg76dmztm4hncr7vf3r3c9j0qpt4rap7y7gersjk4m3ks2lhd0e
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBVRTE5TUNYWUpxbWdIenB0
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBZdXBMY2t6U0VBWjRyWUV2
-            WVdlMXFWK01vMndHTDhRdFppRC9MY09xeFZVCkhEL21Pd1pzcjlKQld5a0JvMjlu
+            WS9oS0tWUnBQMWhPc3VsTVVKSnZSemxvU0FZCmFWbzFEZEZrMzJxTmpJKy9HY2F5
-            QnhXNDlETmV0QXJ6ZWhzdGROZ25MQjAKLS0tIDQyclo1ZWtkM3VNbjJ1dHhTZXk4
+            RHBjcUNYZ1R5ZHUxVmhPYjJRQkZyMU0KLS0tIGcvZ2hPQURmanJLRjRaNEJtTml3
-            OWRVdXZEZ2pEWXJGQmNaMm1aT2l0aWsK43Oc54CGekbbBkcnctXnUMyqo8ygmBL0
+            dElTa2hZck1rSG1HcDBVSjZQNjhzT0EKgUylDuQBZkW1Z6AB/EsVbxcippw5XOeY
-            BMC6FtUVYMkP++Y7KFR6sudMemf9f+FbsCVRqBd9x+c2YzzgyH8ogw==
+            e+NDtqFixYR1u57+fKVl5dY281kspYIQDCUx1lBZiH7iwUPZWNtEfA==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1ll6hj5ggruetgjwjfnplpn5xtq35uhlcdflksx3xmnjm6s3uad9sz70jkf
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBEaEtNL243bFF0am9HSkZp
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBHYWtBYmU2Qk0vQ2dUQjUy
-            anh1Ukl0bTJVUGJXUzM2NFo3Ry8yeTBVUUIwCktPVkpKNXBOYjRTMWNlay9Ia3Nj
+            RGs1b1BzVm82Z210MGcrbnhiS0pCVnJzbkFVCnhpZUxSVmZTd0VSM0ZvZ01tM2hP
-            bURMbFk4WUw3NVhUb25mZmtSU1ZRbHcKLS0tIHdkVEovUVpxMk5aVGRPMWdpaUdj
+            QlJ4NUQ0VjBBSXJGR0VScE5zNXhjVjgKLS0tIFZyNVF2a2VPdzhyZ1MzN3dYa0xx
-            NzdISWtmYTFBb1FkT3hTeWFnaFJWOGcKdcLL3/fAgDME0Xsx7lS4q1boG8t7no3T
+            U0tqTWZNSDdHU3Z5UHNBbGR6aFZ1MDQK7z0OC0yazekxpLmiKFuqWZm1rWMZqpXb
-            BZ6kdHnWe7fdzoTrCsaxWZPRom1hs10FZ4H+VI+CiEKki0N2XDMB4Q==
+            FGnZFMDdEwB5wTeiy4LCXS70zyr5eVT7KPeK25EG6pXQ4qqKZ12CyA==
             -----END AGE ENCRYPTED FILE-----
           recipient: age120le4a5l8dh3lyfgvmj3d9ksmej6ajs5mer5y7r0vfg3x9fn69dqf8xgzu
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBQTkRYelcvY1VEcThELzVo
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBqSG5NemtzUXlhelpvblFl
-            a2E5QVNnME5VMU56SDduVlZKQUdhaTlKY25rCllGRk5GZlJMb1c4M0o0dkREZFFt
+            TldjUGVtZFFXWGM5ei9EN3V5N2ZLY0VRV0RJCnFNN1lVNmhWckFWbUVJd0grR2Ja
-            MW9BcDU2MkxWeHVESUtqcHpWMDRzLzQKLS0tIFZSU2J0RXoyQUxlYVNUa2t5ZVhp
+            MmdYazZLUVFpelUyMFhta3dGSEc2Mm8KLS0tIHl4TlhhVFVOcmkxaHpKVWlrdEJx
-            bEVlNURjeGRvdXkrS0N1eDllV3lJTGsKc/4cEEhEJwmLSxUDFzAMxD+7TWcOKNjD
+            VlBQazd5MG1yc3E0TzQrd3FmWG8wd00K8+cAm4oWVraERb8i8EurAnsR/L085uPR
-            +Kcz2+sX8sTXLBLCGABR1XQdy1aejVku4atujnDOE6BzYjjfkRfc9A==
+            zzIZEYW6hHxf9Ah9vMzM+3KIsnnS0Gr5QT8ATzpd8huXCqPNiveDFQ==
+            -----END AGE ENCRYPTED FILE-----
+          recipient: age1qz9d4ka4xgexujyd247s7lp737sulp5fhxl5d65fj2ykvc4j4edqrsdks8
+        - enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBQdDdQUEh6ejg3UG1LMi8w
+            bTJacGZQY3dUVEtJY3NGeWpxYWRITkZpN2swClVmb2F5N0phYzRXVG1RY1NsUm52
+            OWVLY3FJU0JXcGFVZDJGdVJ0dVhBN0UKLS0tIEl2b3JjV2JaS0crMnRpZElGdDZS
+            MDFyelRvcUsyUDdtai9IYnpHK3g2L2cKlvZloUKACDy9OyRI7ruPUjYqFENXzcVI
+            amFHFTbEGKVWIPwDjEwsMT+S4bHBkNWyny5dD5CrBpk7fiyQ+5U8+Q==
             -----END AGE ENCRYPTED FILE-----
           recipient: age120whqj96g26lsgy4udvgsn8dc9lumh8jeu3a564fx79rjr5lxffqmrljuu
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBGa3RDdTdFK2VxTGYvYm1R
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBTZnZIa2xXM3RIYk1tbitC
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     unencrypted_suffix: _unencrypted
-    version: 3.13.2
+    version: 3.13.1

secrets/gui.yaml

@@ -1,52 +0,0 @@
-wifi-password: ENC[AES256_GCM,data:SZQPtU6PYHbf9o83wq3KTupx,iv:FxO68Pn/+N58r/OPLfkAMYPFpP8TYxszMniFd/01E38=,tag:jwxaY6zDEcO5r9OWSfvUyw==,type:str]
-sops:
-    age:
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age1njap586hc0q43kr03g6c8eqhdsmk8zcafkl3f83xwlc2gqhlmfgs4tmwad
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age190htw7prp4vln076dxjx3gxxaq06h0zl0te7cqgpx79vl3lhkaes8suy05
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age1adur9g330gua4l6ndk8cqjg35qc8yxwgme6wrl2hpylcc7vxm38q05ejuy
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age1hrx8qj02fj2ea6d4g9vqhyj9hl7fppkjqfdx2l37py3h6pdkr95s8n8rvs
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age19mn8zrxl8zpps9yvrh4euquvygpp4fp8queg7xc6qhtnl4ng8c9qx02qwn
-    lastmodified: "2026-07-22T01:15:21Z"
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-    unencrypted_suffix: _unencrypted
-    version: 3.13.2

secrets/nix-cache.yaml

@@ -1,53 +1,34 @@
 beszel-token: ENC[AES256_GCM,data:meuzUP/6wCssJDVTgbC0XwiLZPMGyDl55HEIiON9xOXCD9k6,iv:TDqWcp+8Mxd8wN09r5otQRQXq3XTeQphaTWxvvuLTAs=,tag:cRPZQGlwB/dTguBAheWPQg==,type:str]
-cache-priv-key: ENC[AES256_GCM,data:6vQKIf7eS0WNL2Eptoi4VWr18SRMZfN/H/aFUUtXdMYQY5LLyBp2EHRKqZcGFuh1nZhUdAxUztq/CVXx+QFxKW+ElHxCxUSp0QqI1fdSkBkKZb8hlit5SoX9JtLzZGg0HBNM3nJu,iv:0J+xmrPJhInHhFR/c41ACjuTfaIoMkQFSfbL2KkgFa8=,tag:f4s9Szs5oprVVRSyXaX48A==,type:str]
 sops:
     age:
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBMWjdNblFJdUpyMGFrSWJm
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+            qAoKs9KSg9VxS7ya8RuLmylKRdpPkupm/8SXIJvQuCXp5LWmNJ4zkA==
             -----END AGE ENCRYPTED FILE-----
-          recipient: age1njap586hc0q43kr03g6c8eqhdsmk8zcafkl3f83xwlc2gqhlmfgs4tmwad
+          recipient: age10nd382a9klsn2mrs60emdtsxe43pht3a0m9p29phfrhy0wfyt3vsq9r667
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBkZmtLL3pzbmNBNkkzRDhF
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+            K7Yyc/Yj0qMvGwLNzphjmbT29P7dXk4Ht4TedqCd+8DfhpOgLVIaSA==
             -----END AGE ENCRYPTED FILE-----
           recipient: age120le4a5l8dh3lyfgvmj3d9ksmej6ajs5mer5y7r0vfg3x9fn69dqf8xgzu
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
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             -----END AGE ENCRYPTED FILE-----
-          recipient: age1jcx3yajjhghn8qh8za3yeu8nxykzlg3p4nrv03vnfvzl0mzayg2qmg940e
+          recipient: age164px2a8e48ptsf9ngtan38aa6jls4jdl26mzrgzf6sn3vcvt49hqjrgr8w
-        - enc: |
+    lastmodified: "2026-07-19T02:30:40Z"
-            -----BEGIN AGE ENCRYPTED FILE-----
+    mac: ENC[AES256_GCM,data:7+FeT6aeCGn+JFBXbPO0qP4BJ1nHPSennewv1kWkG+hOTIqs1ymuswUK1Hyfi6Z9h2umFX9HvK+o3qtmYvk6k7BUNe6w6QUHTNwm6lmNqrb7sgAE3iFVI2p9m14NGhgoTfnXx1M4JIZ1iuNYhCukpENI4+svIe+r7x5YeE5Evac=,iv:4AKAPI6upyAvHBr8BLWX7R/NupmJdcXdqiN8e0ZQ3ls=,tag:TkpfpCaLhn+Mx5cQZZuMdA==,type:str]
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-          recipient: age1ufg390ydrmma849t9xfkxxl5xvdkk6mngnlzhmy7mvuaje8sgcmsmnq6l7
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age1jlltcv5jcnm40z5k0q6hv053k2rqpqvemtuecdwn527uw8uqz4es3x7m68
-    lastmodified: "2026-07-19T23:30:21Z"
-    mac: ENC[AES256_GCM,data:kLGE2xawQT7mx+sfw68hmGk5nCEGiEjZrqTEl9B1dtQmTrMwmoVr/1RISi4LfJrwxy31mDgff4lcIL4wIJuM373uk3X8j4RNyYQNTfKEkORT6r8NHeepNs267O77pKGd7OmcM4MT/BqOnB8ELS7Wlf2ect7CAlvUUVyc8icxgZE=,iv:EYLDsHYHZ1XOQXafOTqHHWpk/OBNq/R6IJnOBYV33E4=,tag:thxrCPC5oGvDjhK7Dz87YA==,type:str]
     unencrypted_suffix: _unencrypted
     version: 3.13.1

secrets/server.yaml

@@ -3,49 +3,22 @@ sops:
     age:
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBxT3dteUY4T0VxaUljbFQ3
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+            VaTdr5qkf8LNNvPI0fxsXA9is5cqeg+KbDRHtUumEhNp6Zrf8zWBkw==
             -----END AGE ENCRYPTED FILE-----
-          recipient: age1njap586hc0q43kr03g6c8eqhdsmk8zcafkl3f83xwlc2gqhlmfgs4tmwad
+          recipient: age10nd382a9klsn2mrs60emdtsxe43pht3a0m9p29phfrhy0wfyt3vsq9r667
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBmWUMyVGpua25ZZ1FRZ21p
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             -----END AGE ENCRYPTED FILE-----
           recipient: age1ll6hj5ggruetgjwjfnplpn5xtq35uhlcdflksx3xmnjm6s3uad9sz70jkf
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age1sweerhrga9yf8x6sv0apz4ed4g48rnlcq34rpv20t0rcelwgpgeqwvndzz
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age1nruncs4l0ufk7yuc4des8p99c0alfndl0lhsws8tycl5pplfp56s30af5f
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
-          recipient: age1529taqdwr6t0w7cvzmty0d5y5593wffl0krt48j6uc4u39k56g2qf6ywtp
     lastmodified: "2026-07-19T02:30:40Z"
     mac: ENC[AES256_GCM,data:rKHZjU/MH08ASTlu32HZO9uWmsBYuMCEC6M8gwVhzuWvmablnP05tS2z13XfaWaCEUXk6kmGJKuU0zu5+IKVZgamCF6DAMtxQb6bVCaLsoAm/GSqWQ5VI9eHqgnSSdN/o3ul/33Rf8iBQo4aw8FFAmDVuNz8bfAn0QefFTj0ByI=,iv:JD2gtqRinOY77etg6PUmZNovkYl1Q3F6ZvRi4x7RznQ=,tag:/5IMpWKRVt+l1luCTQE0BA==,type:str]
     unencrypted_suffix: _unencrypted

secrets/tor-relay.yaml

@@ -1,25 +0,0 @@
-beszel-token: ENC[AES256_GCM,data:gjbT3uROiVKQOJaUeafTxjVknQO1Tvbyx/Pl2bTad7DezByX,iv:3ikf7OaT2omO8yd6G6UwYbaRBSzyvbn+NghxAe5bcgI=,tag:Zuc2EP8rUtdDhr5CzSW2Pw==,type:str]
-sops:
-    age:
-        - enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
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-            -----END AGE ENCRYPTED FILE-----
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-        - enc: |
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variables.nix

@@ -12,22 +12,8 @@
   nfsServerHost = "server"; # NFS export source hostname
   dockerHost = "docker"; # docker-compose stack host
 
-  # Raspberry Pi's own Tailscale hostname (not fronted by `server` — it
-  # exports its own NFS share directly). Resolved as
-  # "${raspberryPiHost}.${tailnetDomain}" in modules/raspi/mount-data.nix.
-  raspberryPiHost = "raspberrypi";
-
   remoteBuilderUser = "nixremote"; # remote builder SSH user
 
-  # nix-cache's own SSH host public key (not a secret — the private half
-  # never leaves the host). Wired into every client's
-  # programs.ssh.knownHosts by modules/nix-cache/remote-builder-client.nix
-  # so distributed builds don't hit "Host key verification failed" on a
-  # fresh client that has never manually ssh'd to nix-cache before. Update
-  # this if nix-cache's host key is ever rotated or the host is rebuilt
-  # from scratch.
-  nixCacheHostKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICuHUxGNH6ei3BZD+EfZs3l4X8uJNcjQiOsM/G4yo4O/ lxc-nix-cache";
-
   # Public keys authorized to SSH in as remoteBuilderUser on the nix-cache
   # host (modules/nix-cache/server.nix) — one per client host that's allowed
   # to use it as a distributed builder.
@@ -38,145 +24,21 @@
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIGtOWOCS+ImHc7NehguoyD7PbonGosKMZqc9+QR3v/h root@nixos"
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHxXTQxFnArK5HXG7czeoybZebCGfxpUdusJkPn+BCSp root@server"
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICMJhrfFayLBG+gWtO6oAvgambw5nWWgztiTFEaaaVRH debian@surface"
-    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJEj26SL/emsVjW2YhRucJVp2kTz8WgcEQgjBEBLRikk root@claude"
   ];
 
   # Admin SSH public key, authorized on the primary user of every host and
   # the installer image's nixos/root users.
   adminSshKey = "ssh-rsa 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 wayne@stream";
 
-  # Prestaged wifi SSID for the gui host's NetworkManager profile
-  # (modules/networking/wifi.nix). The password is not here -- it's
-  # sops-encrypted in secrets/gui.yaml (wifi-password) instead, since this
-  # file isn't a secret store.
-  wifiSsid = "nbn-fttp-net-5G";
-
-  # Bare-metal gui host's two disks for a ZFS RAID0 (striped) root pool
-  # (modules/disko/baremetal.nix). Only used transiently at disko-format
-  # time (partitioning); the resulting fileSystems/zpool import reference
-  # by-partlabel/by-id paths afterward regardless, same as
-  # modules/disko/proxmox.nix's own plain "/dev/sda".
-  guiRootDisk1 = "/dev/sda";
-  guiRootDisk2 = "/dev/sdb";
-
   # System
   timeZone = "Australia/Brisbane";
-
+  primaryUser = "nixos"; # main interactive user on every host
-  # Main interactive user on every host. Every module that grants this user
-  # a group, a home directory, or tmpfiles ownership should reference
-  # vars.primaryUser rather than the literal "nixos", so renaming it is a
-  # one-line change.
-  primaryUser = "nixos";
 
   # Storage
   storageRoot = "/tank"; # ZFS pool root on `server`
 
-  # NFS datasets exported from `storageRoot` on `nfsServerHost` and mounted
+  # Well-known ports for LAN services referenced from multiple hosts
-  # by client hosts. `subpath` is relative to `storageRoot` — combined with
+  beszelHubPort = 8090;
-  # it to build both the export line in modules/build-types/server.nix and
+  pveWebPort = 8006;
-  # the "<nfsServerHost>:<storageRoot>/<subpath>" device string each client
+  pbsWebPort = 8007;
-  # mount uses in modules/docker/mount-data.nix. `mountpoint` is the
-  # absolute local path clients mount it at, referenced by that same file's
-  # fileSystems attribute name plus every other place that needs to know
-  # where the share lives locally (modules/build-types/docker.nix's
-  # tmpfiles rules, modules/traefik/rotate-logs.nix's log path). Renaming a
-  # dataset or moving where it's mounted only needs changing it here — the
-  # export and every client reference follow automatically.
-  nfsShares = {
-    dockerConfig = {
-      subpath = "docker/config";
-      mountpoint = "/mnt/docker/config";
-    };
-    dockerDatabases = {
-      subpath = "docker/databases";
-      mountpoint = "/mnt/docker/databases";
-    };
-    dockerVolumes = {
-      subpath = "docker/volumes";
-      mountpoint = "/mnt/docker/volumes";
-    };
-    nextcloudData = {
-      subpath = "docker/nextcloud-data";
-      mountpoint = "/mnt/nextcloud-data";
-    };
-    raspiVolumes = {
-      subpath = "raspi/volumes";
-      mountpoint = "/mnt/raspi-backup";
-    };
-  };
-
-  # The Raspberry Pi's own NFS export — not under storageRoot/nfsServerHost,
-  # served directly by the Pi itself over Tailscale (see raspberryPiHost
-  # above) and mounted at raspiMountpoint by modules/raspi/mount-data.nix.
-  raspiNfsPath = "/home/raspi/raspi";
-  raspiMountpoint = "/mnt/raspi";
-
-  # Every literal port referenced from modules/ or hosts/, grouped by the
-  # service/host that opens or connects to it — kept as separate entries
-  # even where two happen to share a number today (e.g. nixCacheHttp and
-  # pxeBootHttp are both 80) so changing one service's port can never
-  # silently change an unrelated one.
-  ports = {
-    # nix-cache's nginx reverse proxy in front of nix-serve
-    # (modules/nix-cache/server.nix).
-    nixCacheHttp = 80;
-
-    # pxe-boot's nginx asset server, also used to build pxeBaseUrl
-    # (modules/build-types/pxe-boot.nix).
-    pxeBootHttp = 80;
-
-    # pxe-boot's atftpd TFTP server — UDP, not TCP
-    # (modules/build-types/pxe-boot.nix).
-    pxeBootTftp = 69;
-
-    # `server`'s NFS exports need both the portmapper (rpcbind) and the
-    # NFS data port itself opened (modules/build-types/server.nix).
-    nfsRpcbind = 111;
-    nfsd = 2049;
-
-    # Opened on the docker host's firewall for the Traefik-fronted
-    # container stack (docker-compose config lives in the separate
-    # /home/debian/docker repo, not here): 80/443 are Traefik's own
-    # HTTP/HTTPS listeners; 8080 is an additional exposed service whose
-    # exact backend isn't declared in this repo (modules/build-types/docker.nix).
-    dockerHttp = 80;
-    dockerHttps = 443;
-    dockerExtra = 8080;
-
-    # Beszel monitoring hub, reachable at
-    # http://<dockerHost>.<homeDomain>:<beszelHub> from every agent
-    # (modules/beszel/enable-agent.nix, hosts/nixos/home.nix).
-    beszelHub = 8090;
-
-    # Proxmox VE and Proxmox Backup Server web UIs, opened as desktop
-    # shortcuts on the gui build type (hosts/nixos/home.nix).
-    pveWeb = 8006;
-    pbsWeb = 8007;
-
-    # Tor relay's ORPort — the port other Tor relays connect to for onion
-    # routing traffic (modules/tor/enable-relay.nix). Tor's own conventional
-    # default; opened via services.tor.openFirewall rather than
-    # networking.firewall.allowedTCPPorts directly, but kept here anyway so
-    # it's not a bare literal duplicated between the relay's settings and
-    # anything else that ever needs to reference it.
-    torRelayOrPort = 9001;
-  };
-
-  # .raw disk image size for every proxmox-* host's standalone Disko image
-  # build (modules/disko/proxmox.nix, config.system.build.diskoImagesScript
-  # — see docs/proxmox-images.md). Root fills whatever's left after the ESP
-  # and swap partitions within this total.
-  proxmoxImageSize = "20G";
-
-  # nix-cache's Nix store garbage collection retention
-  # (modules/nix-cache/server.nix).
-  nixCacheGcMaxAge = "30d";
-
-  # Traefik access log rotation, watched on the docker host at
-  # nfsShares.dockerVolumes.mountpoint (modules/traefik/rotate-logs.nix).
-  traefikLogRotate = {
-    maxSize = "100M"; # rotate once a log file exceeds this size
-    keep = 20; # number of rotated logs to retain before deleting the oldest
-  };
-
 }