Seems to me like there'd be no difference between single- and multi-user mints. As long as you're running an implementation of the cashu protocol then you're sending/receiving tokens denominated in bitcoin that can be redeemed for real sats on lightning.
Discussion
Somewhat. There is high degree of trust when it comes to mints as rugpulls can happen. You do have to trust the mint in a world where we say "don't trust, verify!". Might work at home but I wonder if this would survive more adversary scenarios.