Mhh, good question. Things have changed since then. I think running a mint is out of question since we want to move away from being a custodian. But maybe there is still a way to support withdrawals in ecash since lightning has bad receiver privacy. For example, we could send sats to the mint configured by the user on withdrawal and then give the received ecash to the user.
I was thinking of trying auto withdrawals to minibits wallet. Right now it's set up directly to my node. Really it's just to try out ecash
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