anchor.diff:        parole
         ristretto
         xfce4-appfinder
  +      xfce4-notifyd
         xfce4-screenshooter
         xfce4-session
         xfce4-settings
  
positive.code:         xfwm4
          xfwm4-themes
        ] ++ optionals (!cfg.noDesktop) [
          xfce4-notifyd
          xfce4-panel
          xfdesktop
        ];
  
negative.code:       noDesktop = mkOption {
          type = types.bool;
          default = false;
          description = "Don't install XFCE desktop components (xfdesktop and panel).";
        };
  
        enableXfwm = mkOption {
  