This.
While crypto makes it easier to run an online casino due to taking banks out of the equation, the legality of the matter is still a bit tricky. The latter being one of the reasons why getting a bank account for a casino may prove difficult in the first place.
So if you're serious about this and intend to stay on the right side of the law -- get a professional. Best case someone who actually specializes in gambling law. You'll probably end up off-shore either way though.