I wonder too. I think that even the win32-native msys2 ships with a bash that uses cygwin's dll. Apparently some POSIX/Linux system calls are extremely hard to

I wonder too. I think that even the win32-native msys2 ships with a bash that uses cygwin's dll. Apparently some POSIX/Linux system calls are extremely hard to emulate under win32, such as fork: https://cygwin.com/cygwin-ug-net/highlights.html https://cygwin.com/cygwin-ug-net/highlights.html (search for "Process creation"), which I'd imagine would be critical in a shell for handling redirections, pipes, and job control.