Keeps a MacBook awake with the lid closed and no external display, auto-disabling on battery — exactly the gap in macOS. One sentence states the use and limits, it's native Swift, and 100+ stars in two days shows real demand; the limit is that it only serves MacBook users.
Keep a plugged-in MacBook awake with the lid closed: clamshell mode without an external display, auto-off on battery. Let a MacBook stay awake with the lid closed and use it like a Mac mini.
★119