Create custom iso

.gitignore

@@ -1 +1,2 @@
-.direnv/
+.direnv/
+result/

flake.lock

@@ -188,6 +188,42 @@
         "type": "github"
       }
     },
+    "nixlib": {
+      "locked": {
+        "lastModified": 1723337705,
+        "narHash": "sha256-znSU0DeNDPt7+LMAfFkvKloMaeQ6yl/U5SqV/ktl1vA=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "ace7856d327b618d3777e31b1f224b3ab57ed71a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "nixos-generators": {
+      "inputs": {
+        "nixlib": "nixlib",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1723683171,
+        "narHash": "sha256-hQMQQHOVVkiCO5hmbjI3EVimWFIkRNkGIGUhyIQ0mQ0=",
+        "owner": "nix-community",
+        "repo": "nixos-generators",
+        "rev": "1cb3dc2f3af215ea40911de8fd0942c1ff3fb673",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixos-generators",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1723362943,
@@ -241,6 +277,7 @@
         "home-manager": "home-manager",
         "nix-index-database": "nix-index-database",
         "nix-vscode-extensions": "nix-vscode-extensions",
+        "nixos-generators": "nixos-generators",
         "nixpkgs": "nixpkgs",
         "sops-nix": "sops-nix",
         "treefmt-nix": "treefmt-nix",

flake.nix

@@ -4,6 +4,11 @@
 
     flake-parts.url = "github:hercules-ci/flake-parts";
 
+    nixos-generators = {
+      url = "github:nix-community/nixos-generators";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     home-manager = {
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";

flake/hosts.nix

@@ -19,5 +19,12 @@ in
       inherit specialArgs;
       modules = modulesOf "inspiron";
     };
+    installer = inputs.nixpkgs.lib.nixosSystem {
+      inherit specialArgs;
+      modules = [
+        { networking.hostName = "installer"; }
+        "${self}/hosts/installer"
+      ];
+    };
   };
 }

hosts/installer/default.nix

@@ -0,0 +1,28 @@
+{
+  modulesPath,
+  inputs,
+  pkgs,
+  lib,
+  ...
+}:
+{
+  imports = [
+    inputs.nixos-generators.nixosModules.all-formats
+    "${modulesPath}/installer/cd-dvd/installation-cd-minimal.nix"
+    ../common.nix
+  ];
+
+  nixpkgs.hostPlatform = "x86_64-linux";
+
+  environment.systemPackages = [ inputs.disko.packages.${pkgs.system}.default ];
+
+  users.users.root.openssh.authorizedKeys.keys = [
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGBUORYC3AvTPQmtUEApTa9DvHoJy4mjuQy8abSjCcDd seb@north"
+  ];
+
+  installer.cloneConfig = lib.mkForce false;
+  isoImage = {
+    edition = lib.mkForce "seb-minimal";
+    isoName = lib.mkForce "NixOS";
+  };
+}

justfile

@@ -25,3 +25,6 @@ fmt:
 
 check:
     nix flake check
+
+build-iso:
+    nix build .#nixosConfigurations.installer.config.formats.iso -o result