Testing for Windows on a non-Windows machine is far easier than testing for macOS on a non-macOS machine. Of course, having people use both is better. IIRC, Ste

Testing for Windows on a non-Windows machine is far easier than testing for macOS on a non-macOS machine. Of course, having people use both is better. IIRC, Steve Klabnik uses Windows to ensure that Rust supports the platform well.