[rbut]

Docker can run on macOS (albeit in a VM), but its still running on a Mac "that is already running the Apple Software". So its a perfectly valid option for Mac owners, even if its a VM + container + VM deep.

[monocasa]

This requires kvm exposed in the container. Does docker on mac support kvm?

[nine_k]

AFAICT, with QEMU, access to KVM is only required if you care about performance %) Otherwise it can emulate everything for you.

[monocasa]

This dockerfile explicitly enables kvm in a way that will cause qemu to fail if it's not present.