Add GUI configuration

configuration.nix

@@ -51,9 +51,23 @@
   # Allow propietary software
   nixpkgs.config.allowUnfree = true;
 
+  # Scrub zpool monthly
+  services.zfs.autoScrub = {
+    enable = true;
+    interval = "monthly";
+  };
+
+  # Set timezone and synchronize NTP
+  time.timeZone = "Europe/Brussels";
+  services.timesyncd.enable = true;
+
+  # Enable the TLP daemon
+  services.tlp.enable = true;
+
   # Import other configuration modules
   imports = [
     ./modules/networking.nix
+    ./modules/gui.nix
   ];
 
 }