SteamOS for Apple Macs is finally here: AAA PC games get tested on MacBook Pro
(www.notebookcheck.net)
Among everything else, it's kinda cool that we're inching ever closer to a world operating systems don't really matter any more. I mean, sure, this is literally running a virtual OS inside macOS, but I feel that it's only a matter of time before that VM layer isn't necessary, and that software will run on whatever hardware you have, as long as the hardware is up to the task.