cashu-ts is a typescript library for building cashu wallets. very easy to use.
I don't really see the need for such a complicated setup nostr:npub1q6mcr8tlr3l4gus3sfnw6772s7zae6hqncmw5wj27ejud5wcxf7q0nx7d5
Discussion
It’s not complicated. It just enables an npub to appear as an ordinary lightning address and receive a payment from anyone outside the #nostr ecosystem.