Ok it's the relay who gets paid, that's awesome. Is there an issue if the relay runs the mint?
If they wish, they can operate both a Nostr relay and a Cashu mint simultaneously. We believe that relays will accept ecash issued by as many mints as possible. nostr:note1xuv2l9e40vm2p05lk6prsn45tfmy4v4kgj6lxwewdxuysdr4wcrsrnva37