It is a program that has a countdown, lets say, 100 key presses, and every time you press a key, it goes down by one, and every, lets say second, it recovers 1 key. When it reached like 20 keys, I got a notification, and when it reached 0, I got a typing timeout (I disabled my keyboard). This forced me to, type more efficiently, to use more efficient shortcuts and to think about code before I wrote it more. In the end, this actually helped a lot for my hands, and I was still able to work on stuff.
I ended up never releasing it, because I was too lazy to put in the work to get it to a usable state for other people on other computers.