Github Actions has been released for public use, and announced at the Github Universe conferense in San Franciso Nov. 13th. And, because Github loves open source - it is fully free for all public repositories!
Github Actions can be used for automating a series of processes, as it can utilize most of the events in the github system. The most typical use will still be to trigger CI/CD builds. The whole system is yaml based, and it can run on different environments, Linux, Windows and MacOS.
There also is a marketplace where you can find a lot of community contributed actions to be used in your workflow.
As usual, the original post is on my personal blog. Read the entire post here.