Nim is nowhere near the maturity of OCaml, and everything I've seen about it has the whiff of zealotry. I'll wait until I see more nuanced talks about it, and an established ecosystem that doesn't rely on C libraries.
If something is compiled to native code, what's the point of writing a library that's not just a binding? In python it makes sense, because you get the pure-python installation of your app - it doesn't depend on the OS, python versions, etc.
But once you're going to compile your app for a target platform... what's the point of not relying on C libraries?
If your app uses C libraries then it inherits the problems of C: there will almost surely be bugs in the library that mean your app might segfault, or worse, have security problems. Thus e.g. the recent effort to write a full SSL stack in OCaml.
