Eric P on Nostr: I think an LND-compatible REST API would work. A generic REST API similar to the one ...

I think an LND-compatible REST API would work. A generic REST API similar to the one Alby has might work too: https://guides.getalby.com/developer-guide/v/alby-wallet-api/reference/api-reference/invoices

I'm also interested in using the Nostr Wallet Connect system that Alby put together that let apps talk to nodes/wallets over Nostr relays: https://github.com/getAlby/nostr-wallet-connect-next . It needs to incorporate the TLV records in the invoice/payment responses though.