[Request]: Audit #if os(macOS) gates

[dcantah]

Feature or enhancement request details

I think some of these are either:

1. Wrong
2. Very trivial to have some of these files work on any OS

Code of Conduct

• I agree to follow this project's Code of Conduct

[dcantah]

#626 #630 #631 #632 #643

[dcantah]

I think these are mostly in order besides ContainerManager which needs a little bit more of a refactor