Post #1262303

@vermeer I don't see it used much. We used it for our open-source projects at an old workplace, but this was before GitHub Actions. Most GH projects use Actions, there's also some CircleCI use. 6.6k .cirrus.yml files on GH https://github.com/search?q=path%3A**%2F.cirrus.yml&type=code 157k .circleci/config.yml https://github.com/search?q=path%3A**%2F.circleci%2Fconfig.yml&type=code 998k .travis.yml https://github.com/search?q=path%3A**%2F.travis.yml&type=code