This comment was a hidden gem in this thread, I've bookmarked that blog post.
Are you avoiding NPM as well?
Seems like a curious requirement for JS development
Aside: I wouldn't sell what I do as JavaScript development, though.
So it would be difficult to purge your system from anything that can run JS :P
For what it is worth, the replacement for NodeJS (Deno) is removing the use of npm, so I am not alone in my dislike of the centralised registry idea it seems.
Deno's approach on the other hand is doesn't force any of that indirection onto the user, and is analogous to (and compatible with) the model of modules on the web. Package management systems can be easily layered on top of that if the use case actually warrants that extra indirection, rather than having it baked into the core of the runtime.