I had this same idea, plus many many many more.

I think custom events can make use cases like this much stronger / better, UX wise.

I think Nostr can be way bigger than "just a twitter replacement".

I'm hosting a relay for developers and reckless users to help prototype and iterate on this stuff.

https://nostr.jmdtx.com/

wss://nostr.jmdtx.com/

If you want to drop your npub, I'll whitelist you.