chicken and egg problem. Nim is a viable alternative to Rust, Python programmers feel right at home, compiles to C, and you can use any C library out there.
Nim's performance is also ridiculously fast and low memory.
Not to advocate for one language over another, but sergio, you're right, Nim is ridiculously underrated and a much easier to use than rust. There's just a lot less mental overhead in almost anything and iteration is going to be much faster because lifetimes do get in the way.
Unfortunately this is one of those things where hype has kind of won out and I think a lot of people are dismissing an option like Nim simply because we're not talking about it on places like HN. Though, to be fair to Rust, the community is doing a lot of bleeding edge stuff that Nim's community just isn't big enough to.
I think like so many things we tend to turn programming language discussions into something akin to discussing religion. I really like Rust but that doesn't have to take anything away from other languages. I'll have to take a look at Nim at some point, it sounds like it has a lot of nice qualities! I really love that we're in what feels like an explosion of new and exciting languages to work with. I don't think Rust is the pinnacle of language design, so having more languages explore the space of possibilities is great!
With all that being said, when it comes to choosing a language for use in a business context the popularity of the language absolutely does matter. It has an impact on your ability to hire programmers, find packages to solve the problems you have in the language ecosystem, and have tooling that meets your needs, just to name a few. Now there is definitely a chicken-and-egg problem here as someone mentioned in another comment, in that you need adoption to drive adoption.
I'd advise you to try not to take these things personally. If you love Nim focus on doing cool things with Nim and making the Nim community a great place to be.
Nim's performance is also ridiculously fast and low memory.