This is the only app I've built for myself: https://apps.apple.com/us/app/the-mirror-timer/id6760243207

It's basically an adaptive timer for remaining oneself to be mindful and aware throughout the day, which is a prerequisite for my main practice. When it rings, it asks you if you were mindful since the last timer and adapts the next interval based on your answer.

I've wanted to do this for a while, but a physical device is beyond my skills and I never wanted to bother to learn mobile development. So having the computer take care of all the nonsense was ideal. Very different experience using LLMs when you don't know the technology, but all the nonsense behind creating and publishing mobile apps did not inspire me to learn it.