Virt-manager with qemu-system, although if you use the kvm driver for both performance should be about the same I think.

Don’t forget virtualbox has a lot of configuration options that may improve performance, Ive never had a problem with it but also never need high performance from a VM.

Check out section 4.1 here https://www.baeldung.com/linux/bind-mounts

I for one think we need a register for each unsigned integer, why is zero so special? :P

Or if we can’t get that, at least every power of 2 and power of 2 minus 1.

Maybe I can submit a proposal for risc-VI 🤣