Ahh.. that's not good for zaps .. i think it won't work , isn't? If i'm not wrong zapping will melt them on LN .. what do you mean for lnmarkets?
It's the backend the mint is running on. Experimental. I have a PR open on nutshell.
Which backend?
Lnmarkets. It connects to my account with their API and uses deposits, withdrawals which are ln payments. It's very neat because you can run a USD mint without having to KYC.