[pjmlp]

The same issues as one or two person restaurant startup have to deal with, for example.

When kitchen cleanliness, plumbing, food quality and preservation, cutlery, access for disabled people, ... becomes an afterthought, it is time to be shutdown by consumer protection government agency, usually they get one time warning though.

Or maybe not, depending on the country, but then expect what might be great food with interesting side effects.