Who would manage the lightning gateway?
This is a good question.
My understanding is that you can’t have multiple lightning nodes using the same key or you get unpredictable behavior. Maybe that’s just for routing nodes? I wonder if we could somehow shard the private key using FROST so that outbound payments are still federated? I’m out of my depth on this one.
What are the incentives? Sounds to me like the gateway carries all the risk and the costs.
Hypothetically they could collect fees from the guardians periodically. Or if we can figure out how to federate the lightning node itself then each of the guardians could be partially responsible. Mints need to collect fees over time anyway or else they’re incentivized to rug and/or quit.