TSAN is not perfect but Go has had built-in TSAN support for a very long time (go build -race). Also, strictly speaking all Go programs are multithreaded. The

TSAN is not perfect but Go has had built-in TSAN support for a very long time (go build -race). Also, strictly speaking all Go programs are multithreaded. The inability to spawn a single-threaded Go program is actually a huge issue in some system tools like container runtimes and requires truly awful hacks to work around. (Before you ask, GOMAXPROCS=1 doesn't work.)