services = {
  xserver = {
   enable = true;

   desktopManager = {
    xterm.enable = false;
    default = "xfce";

    xfce = {
     enable = true;
     enableXfwn = false;
     noDesktop = true;
     thunarPlugins = with pkgs.xfce; [
      thunar-archive-plugin
      # thunar-dropbox-plugin
     ];
    };
   };

   windowManager = {
    default = "xmonad";

    xmonad = {
     enable = true;
     enableContribAndExtras = true;
    };
   };
 };
};