Use in location with no internet

I’m a new user and am enjoying all the infuse features. Currently it seems infuse on Apple TV 4K runs fine and plays PC server content with no internet connection. My test of this feature is short duration. I’m thinking of installing on a yacht that would go long periods without internet. How long will Infuse operate before it needs to be reconnected to internet?

Thanks. This is a question and feature request. I would be fine to pay annual or even lifetime if it can go a few months with no internet. Folks in cabins etc. May have same need.