there was already a site but this is already better.
Find out who doesn't follow you back on Nostr… and my first contact with the Nostr protocol and the NDK library: https://minimo.io/app/nostr-followback/
Discussion
Thank you! Can you share the site? It might be helpful to improve my code. Have a great day!
you need an extension to login https://followstr.vercel.app/
a similar page by the same author https://github.com/captain-stacks/nostr-graveyard