Take a look at this! It's pretty simple; it just fetches macOS and then gives you a shell script that launches qemu with a few flags:
https://github.com/foxlet/macOS-Simple-KVM
Really, really fast, and fairly painless.
It's fetching the disk image right now. Gold...
Thank you!
That would be excellent! I like the idea of swapping host and guest with this VM strategy, sort of evolutionary platform switching.