Holo: turns your desk into four tap zones using only your MacBook’s built-in mic

Holo turns the desk around your MacBook into four tap zones using nothing but the built-in microphone. You tap ten times in each corner to calibrate, and it learns the acoustic signature of that specific desk in that specific spot. Move the laptop and the profile is void. Taps run a Shortcut or a shell command, and everything stays on the machine, with the raw audio thrown away after each ninety millisecond window.

https://github.com/JustinGamer191/Holo