I was using so much AI that I was feeling my dev brain rotting as days/months went by.

I was practicing less, thinking less, and getting a little too comfortable accepting answers I had not worked through myself.

So I built Unrot.

Five-minute daily challenges for developers covering languages, system design, architecture, data engineering, and other tracks.

You get XP, streaks, rewards, and leaderboards. A little competition never hurt anyone.

No signup needed:
https://unrot.dev

Yes, it is basically Duolingo for developers.
100% free. No credit card. No catch. Enjoy!