There will be a session posted tomorrow from Apple on how to use their sample to run a Linux VM with Rosetta support. I wonder if the sample on this page will do the trick by itself?
Virtualization.framework is the hypervisor itself, you only need simple tool to launch it. You probably could just copy-paste provided code into eg. https://github.com/gyf304/vmcli. However macOS 13 beta currently seems to be only available for registered developers.
It seems that very little on the part of the hypervisor is required, so it shouldn't take them long to add it. They basically just have to call a function to create the virtual filesystem device for the guest.
