Pomodouroboros is Pomodoro-method app, focused on folks with ADHD. The problem with productivity timer apps is: if you’re having a day where you already remembered you need a timer, you set it, and you actually start working, you probably didn’t *need* the timer so much that day. Pomodouroboros never stops running, and gamifies your focus to help you set the intentions YOU care about. It’s also all open source, and in Python. Mostly for macOS, but a Linux port on the way.
https://github.com/glyph/pomodouroboros