Nektos Act is a tool that enables developers to test their GitHub Action Workflows on their local development machine. This can be a significant productivity enhancement because you no longer need to check workflows into GitHub to test them.
If you remember my story on my first two contributions to open source, I had begun implementing some enhancements in Crawler-Commons that would support an enhancement in the StormCrawler project. My changes to Crawler-Commons were accepted, merged, and a new version of the library, 1.1, was published with my enhancements (amongst many things). Now that the library was published, the dependency on it, in StormCrawler, was updated to use the latest release and I am now able to finish the enhancement in StormCrawler.
A quick walkthrough on setting up a GitHub Action to build and deploy your Hugo generated, static HTML website.