You also have a whole lot more polyglot codebases now. So it's not just one language, it's all of them. As a web developer, you'll likely be working with PHP,

You also have a whole lot more polyglot codebases now. So it's not just one language, it's all of them. As a web developer, you'll likely be working with PHP, Javascript, and Python, sometimes Ruby and Go for some things, along with a number of specialized config languages for things like docker, nginx, etc. And of course they each have their own package managers, dependencies, etc. If you thought _one_ language was getting complicated, just wait until you see a system that uses a half dozen of them.