I don't know why they wouldn't work on a Mac Mini. I'm not the one who did the work, so I'm not sure about upstream status. Best people to ask are Alexander Graf and René Rebe. But if anyone wants to grab the patches and advocate for them upstream, that would be awesome.
Been looking for running OsX on qemu/kvm for a while now but could not find a place for current patches nor a description of its status at all. not even on Graf's page. Any hint where to go ? tnx in advance.