> Github has always been non-free software hosted by someone else, and run according to its owners' rules and for its owners' benefit, not ultimately the end user. This was true in 2008 and it's true today.

Yup. At KDE we never seriously considered GitHub. We always built our own git infra, and eventually landed on GitLab, after banding together with Gnome and a (generous and forthcoming) GitLab to convince them to move everything we needed from the Enterprise Edition to the free software Community edition.

I think we've had exactly one multi-hour git outage in 16 years.