News for hackers. Stuff that matters.
Re:Show HN: Nebula – Alarm clock where you grow stars while ... by kroltan on Thursday November 23, 2017 @12:09PM (#15766390)
You would need a daemon running on said systems, and communicate via network (local / wifi, for better privacy?)

The daemon would just listen to the network and shutdown the system when requested to.

Re:Show HN: Nebula – Alarm clock where you grow stars while ... by Drdrdrq on Thursday November 23, 2017 @04:11PM (#15767821)
Or you could have a smart plug for TV (ZigBee, ZWave and similar).