Buildkite also offers free accounts to open source projects along with awesome email support. After years of Jenkins, followed by a couple of months trying to c

Buildkite also offers free accounts to open source projects along with awesome email support. After years of Jenkins, followed by a couple of months trying to cherry pick CI parts of GitLab and make them play nicely with GitHub, Buildkite has been a breath of fresh air. Their service has allowed us to version control pipeline configs, test GitHub pull requests, and provide all core features without having to curate a list of random plugins. Note: I'm not affiliated with Buildkite.