(services (cons*
     	    (service gnome-desktop-service-type)
	 	    (service xfce-desktop-service-type)
	    	(set-xorg-configuration
	      	(xorg-configuration
	       	(keyboard-layout keyboard-layout)))
	     	%desktop-services
	     
	    	(modify-services
	    	  %desktop-services
	      	  (udev-service-type
	       		config => (udev-configuration
			  				(inherit config)
			  				(rules
			   		   		 (cons kmonad
				                   (udev-configuration-rules config))))))))