diff --git a/.sops.yaml b/.sops.yaml
index 3f0c036..84be5c7 100644
--- a/.sops.yaml
+++ b/.sops.yaml
@@ -9,6 +9,7 @@ keys:
   - &lxc-docker age1ezk9x53zt8kcnscdm80jcyf0xq97vndv7jsn3rl8cc0cwm2jmpmq372dzs
   - &lxc-minimal age1jy444f9d9stygj4p3w9kh54cqcfr654tvr75tdvee5cxsgtdtc9q3v60ep
   - &lxc-pxe-boot age1fxxzpnfse8nd9wz78ht3m0plrmraacf4cpga0pe8fm2tdnqcgy8q7qsyvp
+  - &lxc-gui age190htw7prp4vln076dxjx3gxxaq06h0zl0te7cqgpx79vl3lhkaes8suy05
 
 creation_rules:
   # Shared across every currently-deployed host: root/nixos password hash,
@@ -28,6 +29,7 @@ creation_rules:
           - *proxmox-minimal
           - *lxc-docker
           - *lxc-pxe-boot
+          - *lxc-gui
 
   - path_regex: secrets/nix-cache\.yaml$
     key_groups:
diff --git a/scripts/proxmox/create-proxmox-resource.sh b/scripts/proxmox/create-proxmox-resource.sh
index 891c7d0..1726ee3 100755
--- a/scripts/proxmox/create-proxmox-resource.sh
+++ b/scripts/proxmox/create-proxmox-resource.sh
@@ -797,9 +797,15 @@ 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 "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"
+--efidisk0 ${storage}:1,efitype=4m,pre-enrolled-keys=0 --agent enabled=1"
 
   if [[ "$dry_run" -eq 1 ]]; then
     echo "[dry-run] ssh ${ssh_target} -- qm importdisk ${vmid} ${remote_path} ${storage}"
diff --git a/secrets/common.yaml b/secrets/common.yaml
index 450d523..54ba946 100644
--- a/secrets/common.yaml
+++ b/secrets/common.yaml
@@ -5,94 +5,103 @@ sops:
     age:
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBWcWtCck9HajZXTW8xTGFR
-            UnplbDZ1SWcxNnpDYjRyVG5QeGw0YXRTUVJFCjV3anBuVWNnNHFJa2tXeEdZR0ly
-            eXVtRXM3T3BHbXRSa2lwWVBDS0pYTTgKLS0tIEhDY280OWVwNEphU1FJRGRSbzFH
-            LzdQVVlmRDl0em82ZVVWNkdFSFZ5VXMKhKnOOigvGhy+GzcGjJBzfHuoiRKbgVVA
-            S/zM+fDQdS1qlg3Bp/GofCpeKpmERe/SLMlib5LgCUCWyxB+2IPPKw==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSAzdUlybVpDamVxYk94MDEv
+            VjNiVjJkWjZvYjN1SUhMSG5ZOS91a3FrNDJRCi9IQWh4RVdwdkhwQjd6TTBhcW9J
+            alhLMlArM1VvVkE5VUxOQ1ZWNmw2SmcKLS0tIFRvWklUN0xxSFdKSk1vakExQ3Rv
+            OWpmSGRTUHlvVysvR2N4UHRYWHgvMHMKqapmFB4ct1FTPa1hMWyylvLycUvOEFop
+            enZI5SV1F86HOTEhK0QbnEW3jMl4ZXOtAlwcys2oE9a783MSgVPxeg==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1njap586hc0q43kr03g6c8eqhdsmk8zcafkl3f83xwlc2gqhlmfgs4tmwad
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBBbDhMaUNNMk9MY2FPUm51
-            MVYzUEdoKytEVDRSU2RESGFCamkrVXpITmhJCkl4VVJmM1NBbUE0cCtDWEgyWTNo
-            STJ2cEZZRStJZkY3YTM1TCtiMnpXemcKLS0tIEpkODdLTlAxaFkxbk4ycW1lanVh
-            TnVPR2xwVG9aTHhPYm01SG44ajJpeUEKNObIucwjlj3Y7YqhJwQGdeV1wFAcANmn
-            564nMYDfh/KvN86r5yhwwYzkJHV2ejlh/30lxAPG5Z9gdtgnFRJrVw==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBEc0lHazMrVUR2UUlaQ21O
+            T2Jha0EvUmJzVC96Wksxay9GVlEwU2lZWVRRClBQdWVqTjNTYnBrQldMeWR0dWNz
+            QTN6T0VtQzhpM3UwKzVjUjl0Rkp4VzQKLS0tIEg5VzhUT1VTamQzZjNYT2orMnY0
+            Q1BpNzI2cVk3by9Ic3lrQ25sM05YMlkKXVofmCu7iI/my1o47p2eUzhXuP/V0NS8
+            mmIerz2v2uUwoS252qSU4a2vmxPOgWM0Os1vWsYamsapofQc6TaU2Q==
             -----END AGE ENCRYPTED FILE-----
           recipient: age19gfn2yedg76dmztm4hncr7vf3r3c9j0qpt4rap7y7gersjk4m3ks2lhd0e
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBSTzNpdzZ3U05zKzNnSXkz
-            Z1NmNURPbXlnelNIQTVUYXBHc002VmlLU2xrCm93TUwxaHgyWWdGVVdOQlFjTFAw
-            aWNHeEFFRjVMRnk2TUpxY1lUQlFzVGMKLS0tIHBTbGhmcVhxa2h0M21qcElnRGp1
-            RDBNSnRhUWExcnh0TFlaNzZ4MXBQYkEKrpCjW26PsgwM8AqS3d+EjBkpNlUcUxlQ
-            a4GlRW+FDTKrVzvfnZRhILKU/ekJQP5nGyjLS9QdWloDxiANbUjddA==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBYZHVnTEk2SjUwdTdKdWNV
+            dVFPNDFvdzY2VUlzMU5nK0t0UlUxU3Ewa0g0CjJCd0ZrMjhRZldaUDNIS1pGZTZn
+            Z2h2MEJ6TUpna1NNdXl4R3d1S1djVDQKLS0tIFJqMlZ3b0Zzalp2N0hIc0NHMzU4
+            RGRoVjdvMEkxam9DRzdYaW16enAyQ3cKUZTDqvWnmEMKHhI430coKHw3raIiD/o1
+            1BtDWOmKFFcuaF5mRx/qTUjEwU5OZWOujqLSPoVbmsbhyxsG3XQSHg==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1ll6hj5ggruetgjwjfnplpn5xtq35uhlcdflksx3xmnjm6s3uad9sz70jkf
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBGc0UwZjFJdUZXaGpjS09Q
-            Nk9jNElBYlVjWVFCeHFObm9ScVRrMVQrNUg0CnpGWkE3U0xSS0hHcVlnOERRY0Rx
-            Y3pKeU51QmovdUt2VkcyajZpWDk2ZDAKLS0tIHA0VmZqc0xQS0RvbU4zNnRhL2VK
-            VWFhWExzb2M3ZjgrOERzVlN6S3c5SUUKa2QQz0S9i9IPCZnwDGqLsnCZhdsC3Dwa
-            gND6ExDrXuvDK5HgZjixCzpYOFC/JloJPOONH8gkc3hCany6N9rCpw==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBzbXdrajlVQU5RditMckh6
+            ZGhvcU01UEdMbURlcG9mZzg0RTJhcHJ4QlQwCjgyRGVXYytxUFB0WXhadHQ1YVpF
+            VUJpVzE2SzFPc3FHV25FQmVSQzNJTm8KLS0tIG9DazRkUkwyNHNQMnp5R3RySDBo
+            aGFLUFBjZjVxeWFzTXFldHVRNkNyYTAKd6eS5lks4+3SV1bFBQWyPi7OZcvRMDIc
+            kYD5C/vMkKlvBYyODCWJyim2xgM/nyQNcf/q4BUS3HF/RidRdJh9NQ==
             -----END AGE ENCRYPTED FILE-----
           recipient: age120le4a5l8dh3lyfgvmj3d9ksmej6ajs5mer5y7r0vfg3x9fn69dqf8xgzu
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB0Y3VjL1dYVDU0eXdCKzJH
-            VG00eFZoK2ZnYUZIaWhnLzVlN01XTFBMRGlRCmNBSXJoVHVxd1o3bitjSzNsMjZZ
-            ZU9pSFN0UG00ZUdDY0ZWZ2t0YlVLbTgKLS0tIHA1bUNBT0V0bTBWcmY2UVhkYW1J
-            dmExckdTUVlCWWdpaG0vUDl1aG94d00KdbkEFjCfdkdRABYXLfK/kwwuQubOK51q
-            w5SIKfOkyGX3WATarPWNQAxmNknozQECub1tCs8G0l7eCUjfpLuXdw==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBFZEhIT1REUTFtdkIzaDFY
+            dGU4VjU3QlpPU1Rod1dTUWhBbjc0WTR5bUF3CkNGY3F2Q251aXlGNCt5ZjFWMTE1
+            RjY4bHZ1T29aK3N0SktjdUpZbSs4QVEKLS0tIDZrMWd3aFVRMEZMU1N1dlZxYTZS
+            U3gxWU5EVVRXUGxJVlZQZmpZRmdhbW8KJ8yD9laK2T1qn0z2uYNeI80rtMlOVi2M
+            qIPn/FSoWnKQ7NotSTGUtEhC+f/nXfUQrBd5fsfmja++hrevTmkqYw==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1jy444f9d9stygj4p3w9kh54cqcfr654tvr75tdvee5cxsgtdtc9q3v60ep
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA0L0tmV0dldkczS0lSRnR2
-            cE5YaTR3eTc0QTAwSmNZKzVVeC93a1dGT3pBCkFYOWZSekxvMi9JclVKeU5CRk9N
-            SVVXQittb3AvU1FEUFYzQ1VVVEgrWFEKLS0tIGRxVFMxQjBKTWZlakxmWXBXRCt1
-            RTI2amIxYXdsMGdEVmliUXpaUU44dzgK9l6o/NozRvk8cViqgbDetifjZuoRXf5f
-            qQUVc6Qg97RZN2TIczN3YEKYXhzk7A1ihD4yds7FBgzMuvYQWH983g==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA0N1owUGpuWWxWb2t2Mk5Z
+            QlZ6Nm5lcnNBY0d1NldBQXY3OThLM2UxbkY4CkZyRUl4S1JRaDhnemRIYWR1OHZx
+            aWliVWh3V1RBL0R3Q0RqOE1SM0VBblUKLS0tIGpaUjJxdnV0UW55T01HcFBsdHR2
+            aEJ3UzJ6RklZVFRrNGMraUtGYXVZd0kKaQmzjnI6xgV7H1YcoI+gRn2IVfOLTJBY
+            rO43fvVtZ79c1as6CL+GoEIJY/uVA/3M4gQ0vYbDDn57vm5OOJW8jg==
             -----END AGE ENCRYPTED FILE-----
           recipient: age120whqj96g26lsgy4udvgsn8dc9lumh8jeu3a564fx79rjr5lxffqmrljuu
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBkdkpXZnJNN1ZuU0MybWhG
-            WWE3TVNFOURzR25wcTZ6MjIvNG4wSmUrbUhzCnM2aXRHV1h2ZmRVV2xpNVU0WkRy
-            bmFMcHhtRW9FTlRlbklNODErQkZHRWMKLS0tIGwvcXVOVlE4cHNUeUVCV0NLd1FC
-            QUgrWmVXRHE1d05KaEtuUHdISytvam8KgjQaJeQvOUhcPyrfSPhniRBDahaINlkj
-            d9cXhwSVvsB8L9SN6U4mPK/6s8FhWgkwFBjUV4rCMGVr2ngjMZ8BWg==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBMWTcwd0JLS0lybWREaU5h
+            NHczcEQxeUx4U09oV2k5ZXpKTGxxR3ZYd2tnCkVXR3kyTHZSSWNaUCszL3Rvakhm
+            bVl5bnFRVkhJRFVaY1NQYTNrd2JKMTAKLS0tIDJTT0YvUE5HUWVKRnhXY2tvMjI1
+            VXNlcnJqcDM5d3poVU1SKzQyNWdpRzQKTht/ko7cy7OY0wGfza4eierYS7q/nCFH
+            YsG74ez3piUQ1rdJRi0e29QWz4xL3JeU9oE+tr0rMB6WvgTmuX5gwQ==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1xjst4frdh0th6q8m7p7u9g5af7ty5jqeum0p6z8a52a9q7st7ewqw8yl9j
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBNdGUyZnBxemhEQ2MySkhB
-            RDNtM01pVWxEb2hpVllYOTFWTHdNVWxhUzFNCkZTNlZCME8vYnowSVpKN0dvOWk1
-            QjE1K25QWkNCd2RKenRMR2l5empMclEKLS0tIEtCb3FnREozbWV0RXNQcEtqV21r
-            Y3YxQlJsVml6dm9LMlZ5VDIzNGVTZFEK5Usyy2tYoExD9X9Zw1tof56qA8bPVJAQ
-            zFvHVFQsmou/qH63UPbuJ4xkNf+j8payFLb1iZq0UhgWv0gVlu1q1w==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBLWmtNOVVvRW9QbU50OUxv
+            TUYxWXJ4cFVaMjVnVHJVK1VTZzhDd2tCMWpnCllPWnl2bjcxemF6cFp1blZnMEMy
+            clhqdlVzdEZTYnY3b0ZhR2hsMXRlQTgKLS0tIHEzNU9yNmhackt6R2dLT2dZSEFJ
+            UnJXeWVyQld6NFhXUWowUlVXaEtKVUkK2Saa8w9/SOWw1VXWkUg62ay31bSIqHWB
+            8QmNafddV0WQ8oYcD8ZMf8Bm8jP9yLMUDOiVzVZiiTGWEx7EbUQV3Q==
             -----END AGE ENCRYPTED FILE-----
           recipient: age10at8862478urh0eeuwh8hzln6ck78jgwtztgxatwqlzwagg77y5snm4xzg
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBXb2FWU3JhN293V3lYWTh1
-            ZGY4bFRjc2srODdVUk5BK0NqVlRVRXZrcVU0Cm9vYlJkblZ0KzVMVmN1MmVkUlQ0
-            WnhKeXUwT3B6eUt1L0NLQTl3aFJ4WGMKLS0tIFY4M1k3VkR6ZUtUOEI1N1VhMStv
-            dXBoTVdGeXdIT3YvUmo1MXhld1VXWkkKEZkOaVkAxRL85ubMWOQuq2xreU8R1EGx
-            28y71UsnqCSOTRj+fqHgZMo6pqsSHC5I7e+/BsSpshmbJbe86glhuw==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA2OEs4dWJ5UTBoY2hHanZY
+            N3VNMWdGVkJHMlVublBmN2NiMUNtRnVnaXdrCnYzV3EvRzV1OXNyOFVKc2lXMFov
+            Mkgvc2dFdyt0MGJIMlFPckpBeDZ5c0UKLS0tIERrOGc4aWtFSTJWN1M2V0hyQ3hS
+            TC9HYVMyVWVBc1lHbUlqbnpsOWJobU0KkZZph2dnKwi4w+RXf7RXoHCYkXxmuLNj
+            rinQQlQeOwQptBn7+kRJubNjyHOlSHXhpsbV3/IkJRNMhw69knzasQ==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1ezk9x53zt8kcnscdm80jcyf0xq97vndv7jsn3rl8cc0cwm2jmpmq372dzs
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBhVE4raWVUTmVvOE1lV0Vz
-            d2hvVWlBcWM0b0VOVFEyN0F1WVZBWkVUcGlVCmRBdWV2WmRDMHFtVGwvbk5uZXBi
-            cFB4UjJpQkNlckhXaUdsd3B6UEV0SjAKLS0tICtLUDVNWEREbVVxNEYrMzlXdHFs
-            RDdENE9FbDJXQkNOM1BhSGhGRHgvL0kKovOmMfELUnHFeAL+kqnmD8quZdwLhuUN
-            fDetQQWrz0lQFH3CQ5fGLw9PelKcywifJV2a0zQB+U7aSIfuhfVThQ==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBoWkljeFFBS3hhOG0relVz
+            V0JUK2hWaklxTGVhMWR4bytPczhjcldheno4CmZUTWszREVUdVVQazNOdXAvY0FN
+            bEtQSDJveHplNTE0a0FvWEFxVlEreDgKLS0tIGNKUkNVQ3BDQ3d0V1lyY0VsaHda
+            cDNHa3lYTkxBeVFlSGtIMVFScmxsazAK5ZyJ35/jjFRhQdG1PMOcEJ3MJf96i8DZ
+            AvCw9jc7Hsbs6+LoZ45K1QKoWoZmBkmAatbksXo3jnAzEHmcQqODKQ==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1fxxzpnfse8nd9wz78ht3m0plrmraacf4cpga0pe8fm2tdnqcgy8q7qsyvp
+        - enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBtWGRLTCt5dXZMR1d6a3lD
+            Z0t1SDAwY3V3MXI1MGt5RGkrc1JHSVRUUzNZCi9UOTBTcVY3NkhFb1FFOS9vbTY2
+            S1BqNmd2eWVXbnliOFJWRDY0UmhYV3MKLS0tIExYNlJxcTBidnpObHgweHlqNHhz
+            OXpwRHhyOGhNRXNTWDBIUVJCR0VPTkkKQZh9e7lOINL0khHS6tBehCrm+SX5Q6XE
+            XL4FpBsJ5+MnxTx1O/bu6/f7OvZqfnxhQv0lkKOMJnkZfPZx5D+meg==
+            -----END AGE ENCRYPTED FILE-----
+          recipient: age190htw7prp4vln076dxjx3gxxaq06h0zl0te7cqgpx79vl3lhkaes8suy05
     lastmodified: "2026-07-19T02:30:40Z"
     mac: ENC[AES256_GCM,data:UiL3VMDF6rq4Nr87KspcDx434q3tfNXeb5pwH2O+4ssNQ6xzcYDdzXBnhAY3zLBsqPMKrvHBd4Ot/gEMcq3FMIVe7Q6p9yWKpep66KZ/yWEhAlwIVhD79Oj8VS+1CHKjf25zpRdhZorp04oeFQQd9VfjJB4EE/Q1aVbwTGlpIic=,iv:i/0conaFgFia+wzNTdUL6tlSTw35HTK3Ap1Sr5RGHf8=,tag:ULbz5FllShA/JjlSRdxA0g==,type:str]
     unencrypted_suffix: _unencrypted