> But what happened to older developers? Did they move over? I'm working on a project with a Rails backend and a Vue frontend. I've been working on a JS backe

> But what happened to older developers? Did they move over? I'm working on a project with a Rails backend and a Vue frontend. I've been working on a JS backend and frontend project in the early 2010s but I think that it was the only project with a JS backend. There are plenty of projects with server generated HTML. In my case the backends were Ruby, Python, Elixir, Java, PHP.