anchor.diff:            as a duration understood by systemd.
           '';
         };
  +
  +      enableXinerama = mkOption {
  +        default = true;
  +        type = types.bool;
  +        description = ''
  +          Will place a separate image per screen when enabled,
  +          otherwise a single image will be stretched across all
  +          screens.
  +        '';
  +      };
       };
     };
   
  
positive.code: let
  
    cfg = config.services.random-background;
  
  in
  
  
negative.code: 
            Service = {
              Type = "oneshot";
              ExecStart = "${pkgs.feh}/bin/feh ${flags} ${cfg.imageDirectory}";
              IOSchedulingClass = "idle";
            };
  
  