Never mind this specific release - you never hear about other platforms on System Z period. Linux got a s/390 port quite early on, and SUSE and Red Hat both sup

Never mind this specific release - you never hear about other platforms on System Z period. Linux got a s/390 port quite early on, and SUSE and Red Hat both support it, but no, Windows, Mac, BSD, etc. are unheard of in this world. You can mess with Fedora / Debian images for that architecture on your desktop using Hercules.