Up until the middle of 2019 it was very unusual to even expect that any CI service would allow nested virtualization. Those who required such functionality had to maintain their own CI runners on their own infrastructure. Things changed when...
Cirrus CI is a relatively new hosted CI service that offers several unique features. It's probably the only CI provider to offer full virtualization (KVM) or FreeBSD runners for free. Currently their business model is centered around GitHub...
Setting up Cygwin CI environment for testing one of my projects took more than fifty trial-and-error attempts - that's why I think it will be useful to leave some written notes on the issues I've encountered. Here is the end result - GitHub CI...