The language itself has no type enforcement, the type checking is implemented within nixpkgs. This might seem like pedantry, but it really matters for things like LSPs (text editor autocomplete). I think that's what scares some people off: it's like OG Minecraft, you need to have the wiki/search.nixos.org open while you are doing your editing.

That being said, the type checking goes much deeper than what the windows registry does - e.g. it won't allow you to enable conflicting services - like grub and systemd-boot - at the same time.

claps

So can a dotfile, or any other kind of storage. There's really nothing inherently bad about the registry. Its reputation as a place to hide things in is equal parts selection bias, users' lack of technical understanding, and the marketing of "registry cleaner" apps.