Lasering in on the three different use cases (rather than just one generic 25min focus time) and also providing statistics are both cool additions. Nice.

It would be a good addition to your write up to mention, for the uninitiated, that pomodoro is of course named after a physical timer with a rotary encoder!

https://medium.com/@thejinxes/ditch-the-tomato-timer-d8bbf01...

If you ever get around to your goal of having a red e-ink screen, that would be a fun alternative to Pepe.