balas on Nostr: the heavy lifting is done by cashu-ts: https://github.com/cashubtc/cashu-ts/ if ...

the heavy lifting is done by cashu-ts: https://github.com/cashubtc/cashu-ts/ if you're doing web then you'll probably want to look there.
my code is at https://github.com/eskema/alphaama/blob/0c9e930ba2872e89e8cd6fc57937e7200cc92a29/w/w.js but it's still in a rough state... it's wip that will change for sure in the coming days.
the nip is pretty straithforward: https://github.com/nostr-protocol/nips/blob/master/60.md