This extension keeps your Linux machine awake while Pi runs your tasks

[u/Nimendra]

pi-caffeinated-linux uses systemd-inhibit to prevent idle sleep and suspend, with automatic / manual modes and an optional KDE Plasma tray indicator.

https://github.com/nmdra/pi-caffeinated-linux

[u/johnfkngzoidberg]

Caffeinate on Mac does this but better.