option-set
services.xserver.desktopManager.xfce
Options
services.xserver.desktopManager.xfce.enableservices.xserver.desktopManager.xfce.enableScreensaverservices.xserver.desktopManager.xfce.enableWaylandSessionservices.xserver.desktopManager.xfce.enableXfwmservices.xserver.desktopManager.xfce.noDesktopservices.xserver.desktopManager.xfce.waylandSessionCompositor