https://thebitcoinmanual.com/articles/what-are-cashu-mints/

Checkout the section on how to create a Cashu Mint.

nostr:npub1dx5q2el8nd4eh3eg9t2e25fd7zuqg7zxz6ldkc3uzgh66ss2yc6st288sj is a Cashu wallet for android and iOS

Questions nostr:npub1dx5q2el8nd4eh3eg9t2e25fd7zuqg7zxz6ldkc3uzgh66ss2yc6st288sj - does someone via the nostr contact list need to have a cashu mint/wallet to accept eCash?