I started learning github actions (and wrote about it). Not true. I was reading about them, trying to understand how they work. I invested one day, after clarifying the terms for me I figured out that I can go as simple as using some actions from the github marketplace and be done. But I prefer to understand what's under the hood. So I did dive in and found that there are multiple repos and more, there is a power behind github actions that seems to go beyond what travis, drone or jenkins offer.