When the Zig project moved from GitHub to Codeberg (https://news.ycombinator.com/item?id=46064571), one of the reasons they listed was that "Actions has inexcusable bugs while being completely neglected." (from https://ziglang.org/news/migrating-from-github-to-codeberg/, internal links not copied because I'm being lazy). They did not go into detail about which CI solution they plan to switch to. As I'm starting to get annoyed with GitHub Actions myself and looking for alternatives, I had been hoping to hear their experience with an alternative, but I didn't get that.

So I'd like to ask HN: if you don't use GitHub Actions, what CI solution did you end up choosing? And what has been your experience with it so far? Finally, if you have also used GitHub Actions, how would you compare your current CI solution to GitHub Actions in terms of pros and cons?

P.S. Something with a free tier or a self-hosting option are the only viable options for me, but that doesn't mean I don't want to hear about your experience if you're on a commercial CI solution.