Nim is a programming language for an expert programmer. The ecosystem is very small and for everything a little bit more specialized you need to make a library yourself.
Compare to other communities where you need to stand out from the noise.
Personal anecdote: I was exactly there a decade ago when I was working on Chrono, now one of best-known date and time libraries in Rust. Since I was simply my own, my design was not as good as it could have been. Of course it is still much better to have a suboptimal Chrono, but I can't deny that it remains and probably will remain suboptimal due to my design a decade ago.
Please, file bugs or complain on the official matrix room. The community tries its best to keep up the official documentation in sync with the changes.
I mean, personally I really like golang. Its actually gotten an ecosystem that functions while being able to cross compile and actually being easy enough to learn unlike rust.
I also sometimes exclusively just use typescript/python just for their ecosystem as a junior programmer. For me ecosystem matters a lot and this was a reason why I wish that more languages can create more libraries which can work.
Like the article pointed, nim is really solid language. But I'd like to see more libraries being made for it.