Rollout: Powerful Feature Flag Management
David Wells, from Netlify, and I take a crack at answering this question in an understandable way.
Are there still servers involved? Of course, but you don't manage them, scale them, or pay for them when you aren't using them. It really is a different model that deserves a new name.
Better yet, they enable front-end developers like us to do more than we ever thought we could. We'll cover a variety of use cases that might get you thinking.
Frontend Masters is the best place to get it. They have courses on all the most important front-end technologies, from React to CSS, from Vue to D3, from Testing to Security.