I made a system that allows you to revoke and replace your nostr key pair with a new one. You can use it when your private key has been lost or stolen. You can also use it to rotate your keys preemptively from time to time.

I didn't know how to code when I started. I spent a week learning some basics, then a couple of months coding by hand, then discovered that AI can help with it, and now I've got a fully functioning prototype all up and running.