Sounds like a fantastic idea. But I’m working on powr alone right now and focused on getting the Android and iOS mvp out first. I’ll keep it in mind though and try to work on something like that in the future once I have a stable version of the app out. Meanwhile, the draft of the spec I wrote is available if you wanted to start to work on something like this. I’m not planning on deviating much from the spec and you could send a pull request to Brugeman. Cheers!
https://github.com/nostr-protocol/nips/pull/1816