cleanup files and add AIO image

installer.nix

@@ -0,0 +1,18 @@
+{ pkgs, modulesPath, ... }: {
+  imports = [ (modulesPath + "/profiles/minimal.nix") ];
+
+  ps4.enable = true;
+
+  users.users.nixos = {
+    isNormalUser = true;
+    password = "nixos";
+    extraGroups = [ "wheel" ];
+  };
+
+  services.getty.autologinUser = "nixos";
+
+  users.defaultUserShell = pkgs.fish;
+  programs.fish.enable = true;
+
+  system.stateVersion = "25.05";
+}