Okay I mean if you're looking at being super serious about being commercial with it (which means you have to respect those TOS most people don't read lmao) then okay you have to call up the ISP you're working with and talk out a business agreement and just so you don't think this is unrealistic:

https://www.youtube.com/watch?v=RZwtvrSjqaQ Top comment: "Honestly anyone can start an ISP especially close to a Data Center. You can get IP Transit for relatively check $200/m for 1Gbps or $900/m for 10Gbps from HE for example. Stay away from buying Transit from companies like Comcast, att, Cox, and Charter. Aswell there are a lot of old cable plants that are defunct and if you had $50,000-$150,000 if your in a small community you could probably get it upgraded to 2 way. If you know fiber and can afford to run cables GPON networks are extremely cheap Ubiquiti is less than $5k if you get a router, switch,and GPON. Wisps are very cheap and are the best to start with if you have low funds but if you have lots of trees in your area you are going to have a hard time doing so. I’m actually doing a HFC and Fiber plant right now in a small town here in the US. If you live in the US look for grants the government gives out Millions each year to start rural ISPs."

This one is cool too: https://www.youtube.com/watch?v=dBiBLG9wnDU but there are too many videos like this so Imma stop now.

Also, if you're about to say "Well in Europe" just stop lmao I'm American and realistically I think the places where this is best suited is probably the Central African Republic (CAR) or other places with little or no internet access.

But yes I've read through all those other links. Very valuable content.