Earlier quoted context omitted.
This, in a nutshell, is why Github is the way it is and there's a lack of good alternatives. I'm not knocking you in particular because we're all pretty much in the same boat here. "I am willing to pay ~$5-10/mo for a reliable host... Need a repo with PRs and issues, where people can register free account and contribute or raise issues, GH actions CI, and pages host to deploy static sites." Who wants to build somethi…
It becomes worth it with scale. A VPS costs more than $5 but you can host a very large number of repos, a dormant repo takes no resources but disk space to host, its only activity that consumes resources, which is less than $5-$10 worth
Anyway, how are you going to pay engineer salaries and 24/7 support staff on a $5-10/mo product? Not to mention, you'd be hosting someone's critical infrastructure so they will have a meltdown when you inevitably make a mistake. How long are you willing to burn money before you've reached a scale where it's profitable?
It's paradoxical how all the money in tech goes to the most useless things that are a net drain on society (social media, ad tech, etc.) and we're willing to pay less for the most important things than we would for a cup of coffee.
At the prices people are willing to pay for SCM, it really has to be a complement to some other product you're offering or part of an integrated suite. It's most likely a dead end on its own.
I guess you could do it... but why? There are a thousand ways to make more money with fewer headaches. I wouldn't get into this business myself and I wouldn't fund someone else either.