feat: use nixos-rebuild build-image instead of nixosGenerators

flake.lock

@@ -329,42 +329,6 @@
         "type": "github"
       }
     },
-    "nixlib": {
-      "locked": {
-        "lastModified": 1736643958,
-        "narHash": "sha256-tmpqTSWVRJVhpvfSN9KXBvKEXplrwKnSZNAoNPf/S/s=",
-        "owner": "nix-community",
-        "repo": "nixpkgs.lib",
-        "rev": "1418bc28a52126761c02dd3d89b2d8ca0f521181",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nixpkgs.lib",
-        "type": "github"
-      }
-    },
-    "nixos-generators": {
-      "inputs": {
-        "nixlib": "nixlib",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1769813415,
-        "narHash": "sha256-nnVmNNKBi1YiBNPhKclNYDORoHkuKipoz7EtVnXO50A=",
-        "owner": "nix-community",
-        "repo": "nixos-generators",
-        "rev": "8946737ff703382fda7623b9fab071d037e897d5",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nixos-generators",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1771207753,
@@ -484,7 +448,6 @@
         "home-manager": "home-manager",
         "lanzaboote": "lanzaboote",
         "neovim-nightly-overlay": "neovim-nightly-overlay",
-        "nixos-generators": "nixos-generators",
         "nixpkgs": "nixpkgs_2",
         "nixpkgs-master": "nixpkgs-master",
         "nixpkgs-unstable": "nixpkgs-unstable",