I'm self-hosting Gitea and Woodpecker CI for least 6 years, alongside my own docker and pypi registries. Adding x86 and ARM runners, it costs me circa $30/month to run the whole thing, and I am reasonably sure that I could make the whole thing scale at a lower cost per user than what Github charges.
I am seriously, 100%, contemplating the idea of offering consulting for migrating companies and projects out of Github. Given that I am fully employed, I'd only be able to do this on the weekends. Could I get a show of hands to get an idea of potential customers?
Sounds interesting but I'm just going to do the same thing as you (self host).
I work at a startup with ~20-30 devs. We're talking about a project like this. I'm not sure weekends would work for an actual company, though maybe it depends. I think there would be an appetite for this. From my POV - the main areas of interest are how you can roll this out to a team gracefully without breaking everyone's workflows for multiple days. Good luck
Doing the same thing, and I'd join you in this consulting haha. It's a breath of fresh air to know what your CI is actually doing