Hi, I have a question. If people try to build their own network, They'll have to connect to the existing internet at some point so they can access a website that is on the internet and not on their network, Right?

So, How would they do it? Do you just ask some ISP for a high-speed connection? How does it work? I saw some videos about people in Detroit setting up their own network but they didn't show everything and their internet speed was quite low.