i think i can do it with NWC? https://github.com/nostr-protocol/nips/blob/master/47.md is there docs for connecting an alby hub or alby account to an app that can do NWC? i'm going to be digging into this anyway, being able to monitor a LN payment as a means to add credit to a relay balance just seems like a logical thing, literally just have to have the npub in the memo