modified: flake.nix

new file:   hosts/nix-cache/configuration.nix

flake.nix

@@ -52,6 +52,18 @@
                     }
                    ];
                  };
+        nix-cache = nixpkgs.lib.nixosSystem {
+                   inherit system;
+                   modules = [
+                     ./hosts/nix-cache/configuration.nix
+                     ./common/hardware-configuration.nix
+                     home-manager.nixosModules.home-manager {
+                      home-manager.useGlobalPkgs = true;
+                      home-manager.useUserPackages = true;
+                      home-manager.users.nixos = import ./common/home.nix;
+                    }
+                   ];
+                 };
 
       };
     };

hosts/nix-cache/configuration.nix

@@ -0,0 +1,46 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ config, lib, pkgs, inputs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ../../common/configuration.nix
+    ];
+
+  networking.hostName = "nix-cache"; # Define your hostname.
+  virtualisation.docker.enable = true;
+
+
+  # Open ports in the firewall.
+#  networking.firewall.allowedTCPPorts = [ 80 8080 443 ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  # system.copySystemConfiguration = true;
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.sta>
+  system.stateVersion = "25.05"; # Did you read the comment?
+}