Due to recent problems free CI servers have had with abuse from cryptocurrency miners, Travis CI are scaling back what services are available to open source projects. We used to use Travis for QuTiP, but the new pricing model has meant that we won’t be able to afford it once the old free tier travis-ci.org completely shuts down. We trialled GitHub Actions to build the 28 different wheels we now distribute on PyPI, and then moved all our testing there as well.

Here are few nice features that I’ve been using since we started. These are mostly not unique to GitHub Actions, but all my example configuration code will be for it.