So I've been interested in Nim for awhile, and I finally wrote a program of decent size with it. It's an interpreter for Chip-8, and I know one has already been written in Nim (but I didn't look at it)
https://github.com/jrenner/chip-8-nim-interpreter
My implementation is lacking some things like input, sound that I'm not interested in, but it will display some graphical demos.
It's also a bit buggy since I missed some things like implementing the carry flag (VF register), but I wanted to get this project out there quickly as I'm rapidly losing interest in it and want to move on to other things!
Probably unlike most people, I haven't written something low-level like this in C or C++ before, so Nim was my first stab at an emulator/interpreter.
Anyways, I like Nim quite a bit! look forward to seeing how it develops.