From [1]: > ORC is Nim’s all-new cycle collector based on ARC. It can be considered a full-blown GC since it includes a local tracing phase (contrary to most o

From [1]: > ORC is Nim’s all-new cycle collector based on ARC. It can be considered a full-blown GC since it includes a local tracing phase (contrary to most other tracing GCs which do global tracing). ORC is what you should use when working with Nim’s async because it contains cycles that need to be dealt with. Sooooo unless you > disable the GC and do manual memory management, but then you lose access to most of the stdlib you still have to run a memory-managing runtime