I cant use `threading/channels` in production when tsan complains about them. Its a struggle already to advocate for using a language at work that's not c/c++, If I build this project on top of a buggy stdlib it'll be the end of Nim at my workplace. ( my job won't be more secure either lol)
Maybe `isolated` provides an invariant that tsan doesn't know about. I must admit I don't completely grok what class of bugs it protects against, certainly not enough for a code review. mratsims various channels are pretty solidly tested, at least the mpsc version, though they're lockfree. @elcritch, you've done some channel wrangling too, yeah?
