How many macOS guests can lightweight virtualisation run at a time, and can it nest them, running a macOS guest in a macOS VM?
Viable
This new version of Viable uses HiDPI in Displays to create a crisp scalable virtual display as good as you’ll get from a Retina display. Here’s how.
Snaps a VM window to its display resolution, offers a fourth display size option, and more errors should be handled without the app crashing itself.
With configurable CPU core count, memory size and display resolution, it can even run at least two VMs at once.
The Eclectic Light Company 