Comment by khaledh

Thanks! As @Tiberium mentioned, Nim 2.0 defaults to using ARC (Automatic Reference Counting), so no runtime GC. The Nim compiler is quite smart about when to copy/move and when to destruct, with some hints like lent/sink for when you want to have a bit more control.

Keep in mind that I also need to use ptr (as opposed to ref) types in a lot of cases when working at a low level, so there might be a need for some manual memory management as well.