Oh interesting, I wrote something very similar: https://github.com/albertz/mac-suppress-mouse-keyboard https://github.com/albertz/mac-suppress-mouse-keyboard I

Oh interesting, I wrote something very similar: https://github.com/albertz/mac-suppress-mouse-keyboard https://github.com/albertz/mac-suppress-mouse-keyboard It also blocks mouse presses. The only way to unblock is to type in a special sequence of letters on the keyboard. But an on-screen display will tell you what to type. It was mostly for my toddler.