[NixOS] Control what is enabled per machine with module options

nixos/machines/ivanm-dfinity-razer.nix

@@ -1,13 +1,20 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, ... }:
 
 {
   imports = [
-    ../full.nix
+    ../configuration.nix
   ];
 
+  modules.base.enable = true;
+  modules.desktop.enable = true;
+  modules.xmonad.enable = true;
+  modules.extra.enable = false;
+  modules.code.enable = true;
+  modules.games.enable = false;
+  modules.syncthing.enable = true;
+  modules.fonts.enable = true;
+  modules.nixified-ai.enable = false;
+
   hardware.enableRedistributableFirmware = true;
 
   # disable card with bbswitch by default since we turn it on only on demand!