I don&#x27;t want to be mean but he wasn&#x27;t a good cultural fit if he complained about that and should&#x27;ve been let go. Successful companies and products are built by like-minded people. You can&#x27;t have someone on your team who can&#x27;t build software because he uses Windows and complains about it. He could&#x27;ve used mingw, or used cygwin, or setup a Linux VM. Make is god.