When one of the incident they write about here happened, I wrote about my experience moving from GitHub to Forgejo which I happened to complete just the night before that happened: https://news.ycombinator.com/item?id=47878192 (lots of other people sharing their experience as replies too)

I was thinking of maybe doing a proper write up about how to host your own Forgejo + Action runners on Linux, Windows and macOS, not sure if there is enough interest. What would people for sure want to know in a guide/explanation of this?