It's funny, but all you see here and on Twitter are cheap shot one liners, many of these people have never even used Next.js. I find server actions combined with RSC to be incredibly useful and powerful. Easily define and call a type safe function from client to server with zero overhead. No API boilerplate, fetch, tRPC anything.. You just define a function and call it, very nice. Type safety, code completion, refact…
What do you do when you change the action API (arguments / return type) and deploy? What happens with browsers still having the old code that assumes the old contract?