IngwiePhoenix on Nostr: There's a whole NIPs for just this: Get confortable with the way Nostr works and find ...

There's a whole NIPs for just this: https://github.com/nostr-protocol/nips/blob/master/15.md

Get confortable with the way Nostr works and find yourself both a programming language and client library you are happy with. And from there you can start building towards your goal =)