diff --git a/configuration.nix b/configuration.nix
index ff46536..69236e8 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -68,11 +68,11 @@ in
   };
 
   # Enable the X11 windowing system.
-  # services.xserver.enable = true;
+  services.xserver.enable = true;
 
   # Enable the GNOME Desktop Environment.
-  # services.xserver.displayManager.gdm.enable = true;
-  # services.xserver.desktopManager.gnome.enable = true;
+  services.xserver.displayManager.gdm.enable = true;
+  services.xserver.desktopManager.gnome.enable = true;
 
   # Configure keymap in X11
   # services.xserver = {
@@ -123,7 +123,7 @@ in
     isNormalUser = true;
     shell = pkgs.zsh;
     description = "Leon Liu";
-    extraGroups = [ "networkmanager" "wheel" "docker" ];
+    extraGroups = [ "networkmanager" "wheel" "docker" "scanner" "lp" ];
   };
   users.extraGroups.docker.members = [ "liu" ];
   users.users.nginx.extraGroups = [ "acme" ];
@@ -176,11 +176,11 @@ in
 
   services.syncthing = {
     enable = true;
-    guiAddress = "0.0.0.0:8384";
   };
 
-  hardware.sane.extraBackends = [ pkgs.epsonscan2.override { withNonFreePlugins = true; withGui = false; } ];
-  
+  # hardware.sane.enable = true;
+  # hardware.sane.extraBackends = [ (pkgs.epsonscan2.override {withGui=false; withNonFreePlugins=true;}) ];
+  # services.saned.enable = true;
   # Allow unfree packages
   nixpkgs.config.allowUnfree = true;
   # services.netclient.enable = true;