Tootfinder

I don't exactly follow the Pomodoro Technique but because of my health issues I try to get up and move away from my desk every 20 minutes...
So I built a timer that literally locks me out of my computer when the time is up, forcing me to go away and take a break.
Lots of work to do the on firmware but for now it gets to 0, does a bunch of beeps to warn me, waits a few seconds, then types command-control-Q to lock the screen.