I think, Alfred 2 community miss simple workflow to run postponed commands/scripts
Like "runoncetimer 30 shutdown" (sleep), "runoncetimer 3h sync.sh" (.scpt, .py)
(i'm not have any coding skill), TY for EggTimer
p.s.: Afred 1 extension for shudown https://github.com/curtisblackwell/alfred_shutdown_timer