So, to clarify things: it's QEMU running in a container, and macOS running under QEMU inside it. This is really nice WRT the ease of installation: no manual setup steps and all. This likely expressly violates the [macOS EULA], which says: «you are granted a limited, non-exclusive license to install, use and run one (1) copy of the Apple Software on a single Apple-branded computer at any one time» — because the point…
Says who? My Mac Mini runs Linux as the host OS, this project allows me to run MacOS as a guest OS on Apple hardware on demand.