I'm asking because publishing cross-platform mobile apps is currently a hassle, as the iOS one can only be done from MacOS, which itself only runs on Apple hardware. As a consequence, I have an old Macbook lying around and dust it off everytime I make a release. A VM running anywhere would come a long way.
Also, I'm aware of hackintosh VMs, but it's a hassle to set up (and yeah, borderline legal, but I'm on borderline patience with all that inconvenience by now).