GOTCHU started from a complaint about every other focus app: they punish you for the thing you were already punishing yourself for, and they never catch the actual failure mode — you picking up your phone while your laptop sits open. Blockers wall off the screen. They don't see the hand.
The fix is a camera, a character, and a cross-device fan-out that turns one detection into an alert on every screen you own. The watchman runs locally, the operator does the talking, and the streak resets gracefully when you slip. That's the whole pitch.