{ }: let in { mkSimpleTrayService = { execStart }: { Unit = { Description = "pasystray applet"; After = [ "graphical-session-pre.target" ]; PartOf = [ "graphical-session.target" ]; }; Install = { WantedBy = [ "graphical-session.target" ]; }; Service = { ExecStart = execStart; }; }; }