A coworker and current deg mods dev had a lightbulb idea to fix a massive UX issue, as well as a great security check, regarding sending/receiving Bitcoin and/or knowing who you're trying to find/message on nostr (and can be used in many different applications).
Can't say what it is at the moment, but I saw a demonstration for it and damn was it good. Don't think it's been made before, but maybe I'm wrong, and if it was made then it'd be curious why it isn't widely used.
Now they're trying to figure out how to make it more... user-identifiable, is what I'll call the next step.
Once that had been figured out, I'd imagine a test build would be released so anyone can try. If it works out / the value is truly there, it'd be implemented everywhere, I'd imagine.