There is AppVeyor API support for Cake:
Here is written how to use (install) Cake in AppVeyor
Git (Maybe for release notes?):
Misc (ASCII ART):
Xunit support should be build in, but I currently can't find the documentation?
This was done but in the mean time, it went from Cake to Azure DevOps.
But more importantly, Greenshot can now be build from inside of Visual Studio by using the release configuration and just use rebuild.