If you have strategically real time collaboration, I would advise against pushing to GitHub and find a way to self-host or use another instance.

Sometimes, I can't help but to put GitHub to the side when we speak open source. Not saying that it's a wrong place to ask, it's just that with GitHub, as with many centralized platforms with many users to catch up to, outages are not all that nuanced. We've been through much of them: GitHub, GitLab, almost the same difference.