I don't know if i like this

nixosModules/DE/gnome.nix

@@ -0,0 +1,51 @@
+{
+  config,
+  lib,
+  pkgs,
+}:
+{
+  options.local.DE.gnome.enable = lib.mkEnableOption "";
+
+  config = lib.mkIf config.local.DE.gnome.enable {
+    environment = {
+      systemPackages = [ pkgs.gnome.gnome-calculator ];
+      gnome.excludePackages = builtins.attrValues {
+        inherit (pkgs)
+          gnome-photos
+          gnome-tour
+          gnome-text-editor
+          gnome-online-accounts
+          ;
+        inherit (pkgs.gnome)
+          gnome-weather
+          gnome-shell
+          gnome-disk-utility
+          gnome-maps
+          gnome-clocks
+          gnome-remote-desktop
+          gnome-calendar
+          gnome-music
+          simple-scan
+          cheese # webcam tool
+          epiphany # web browser
+          geary # email reader
+          evince # document viewer
+          gnome-characters
+          totem # video player
+          tali # poker game
+          iagno # go game
+          hitori # sudoku game
+          atomix # puzzle game
+          ;
+      };
+    };
+
+    services = {
+      displayManager.defaultSession = "gnome";
+      xserver = {
+        enable = true;
+        desktopManager.gnome.enable = true;
+      };
+    };
+  };
+}