I don't mind that registries are a thing but I hate that they're so baked into the tools, which I think is what you're getting at.

If I'm starting a project, I want everything small, simple, and self-contained within my project directory. If, right out of the gate, I'm supposed to already have a daemon running (as root it seemed for a while?) which will do the building and execution, and a "registry" set up somewhere, I've already got pieces I likely don't understand and magic commands and high level abstractions for interacting with them, and introductory material telling me "this magic command is all you have to do! look how much you don't have to worry about!"

But I am worrying about it. And that's why I love when people write these "hard way" guides. So thank you for that link.