anyone have any good pointers for hand-rolling this? I have a bunch of VMs on a linux+zfs host I want to move to another linux+zfs host. I can do it by hand but figured I might as well get to grips ...

Containerizing the GUI separates your work and play. Virtualization has always been a rich man's game, and more frugal enthusiasts—unable to afford fancy server-class components—often struggle to keep ...

If you need to use virtual machines on Linux, try Virt-Manager. Virt-Manager is more reliable than VirtualBox. Virt-Manager is completely free and open-source. I'm a long-time supporter of VirtualBox.