Video online within the network of one city and provider, how?

Question

Ruby on Rails

Good afternoon! The idea of ​​creating an online cinema within the same city and Internet provider has ripened, so that the video is shown only in the provider and the water city, so that there is no other access and to avoid traffic loss. There is a site, made on ruby ​​on rails 6, there is a separate server for movies, by the way, the site will work externally, but showing movies for other cities will be limited. So, how to set up the server correctly for local work, or set up a database, or you need to deal with a provider, I ask for a superficial explanation of this topic, thanks.