Let's see what breaks

laptop/configuration.nix

@@ -8,6 +8,8 @@
       ./hardware-configuration.nix
       # Home-Manager Nix configuration file.
       ./home-manager.nix
+      # Gnome configuration file.
+      ./gnome.nix
     ];
 
   # Keep the system up-to-date automatically
@@ -85,32 +87,11 @@
       enable = true;
       touchpad.tapping = true;
     };
-    # Enable the GNOME Desktop Environment.
-    displayManager.gdm.enable = true;
-    desktopManager.gnome.enable = true;
     # Enable nVidia drivers
     videoDrivers = [ "nvidia" ];
     autorun = true;
   };
 
-  # Set Gnome settings:
-  services.gnome = { 
-    games.enable = false; 
-    core-utilities.enable = true;
-  };
-
-  # https://nixos.wiki/wiki/GNOME
-  environment.gnome.excludePackages = (with pkgs; [
-    gnome.cheese
-    gnome.gnome-music
-    gnome.epiphany
-    gnome.geary
-    gnome.totem
-    gnome.gnome-characters
-    gnome-tour
-    gnome.gnome-maps
-  ]); 
-
   # Enable sound with pipewire.
   sound.enable = true;
   hardware.pulseaudio.enable = false;
@@ -158,15 +139,6 @@
     iotop
     glxinfo
     tailscale
-
-    # Gnome Extensions / Packages
-    gnomeExtensions.tiling-assistant
-    gnomeExtensions.dash-to-dock
-    gnomeExtensions.blur-my-shell
-    gnomeExtensions.vitals
-    gnomeExtensions.user-themes
-    gnomeExtensions.caffeine
-    gnome3.gnome-tweaks
   ];
 
   # Enable the OpenSSH daemon and Tailscale.

laptop/gnome.nix

@@ -0,0 +1,38 @@
+{ config, pkgs, ... }: {
+  services.xserver = {
+    # Enable the GNOME Desktop Environment.
+    displayManager.gdm.enable = true;
+    desktopManager.gnome.enable = true;
+  };
+
+  # Set Gnome settings:
+  services.gnome = { 
+    games.enable = false; 
+    core-utilities.enable = true;
+  };
+
+  # https://nixos.wiki/wiki/GNOME
+  environment.gnome.excludePackages = (with pkgs; [
+    gnome.cheese
+    gnome.gnome-music
+    gnome.epiphany
+    gnome.geary
+    gnome.totem
+    gnome.gnome-characters
+    gnome-tour
+    gnome.gnome-maps
+  ]); 
+
+  # Gnome extensions
+  environment.systemPackages = with pkgs; [
+    # Gnome Extensions / Packages
+    gnomeExtensions.tiling-assistant
+    gnomeExtensions.dash-to-dock
+    gnomeExtensions.blur-my-shell
+    gnomeExtensions.vitals
+    gnomeExtensions.user-themes
+    gnomeExtensions.caffeine
+    gnome3.gnome-tweaks
+  ];
+
+}

laptop/home-manager.nix

@@ -8,9 +8,8 @@ in
   ];
 
   home-manager.users.albert = {
-    /* The home.stateVersion option does not have a default and must be set */
     home.stateVersion = "23.05";
-    /* Here goes the rest of your home-manager config, e.g. home.packages = [ pkgs.foo ]; */
+    # User Home-Manager config location
     programs.git = {
       enable = true;
       userName  = "albert";
@@ -22,9 +21,8 @@ in
   };
 
     home-manager.users.root = {
-    /* The home.stateVersion option does not have a default and must be set */
     home.stateVersion = "23.05";
-    /* Here goes the rest of your home-manager config, e.g. home.packages = [ pkgs.foo ]; */
+    # User Home-Manager config location
     programs.git = {
       enable = true;
       userName  = "albert";