If you're talking about Bitcoin Silent Payments but without scanning because it'd use nostr, and the demo was on Sparrow wallet, then we're thinking of the same project, however, what I'll be doing is different, where instead of having the user utilize Bitcoin SP by adding/attatching it to their nostr address with an event, I wouldn't utilize Bitcoin SP at all, the nostr nPub is itself the static address (so no setup at all), and because of that, the Silent Payment idea would also be extended to other compatible chains (silent shitcoin transactions). End result?: New user generates a nostr key, does nothing, can receive bitcoin and shitcoins, on-chain, silently.