I was skeptical towards Nim. Then I wrote a small program that uses SDL2, and compared it to the same program written in over 10 other programming languages. Nim has an excellent combination of ease of use and performance.
I'm hoping someone builds a great web framework with it, and a library like Ecto for better postgresql access. This language great potential to build faster software.
Here's a repo I found: https://github.com/Jipok/Nim-SDL2-and-Emscripten