Have A Problem Build An App

personal·March 30, 2026
pace-rabbit

Intro

This one's about how I build apps for one-off problems and never try to make them into something bigger.

I run too fast

Ever since I started running, I've been dealing with one injury after another. Each one forced me to take month-long breaks and watch all that training go down the toilet. Now that my first marathon is over, I decided to train smarter and focus on strength training. But there's one thing I need to be way stricter about: pacing my runs. I always run too fast for my muscles to keep up, and that's what keeps causing the injuries.

That's how I got the idea to build an app that notifies you when you're running too fast or too slow. It's a fun little app built for me personally. It's not going to be hosted for anyone else. And I'm looking forward to building more stuff like this for other problems I run into.