Comment by prmoustache

I made a minimal debian wrapper installation on an nvme drive in an usb enclosure that add support for secure boot, encryption, bluetooth, wifi and start whatever OS I want to run on qemu. The thing check total memory and cores of the machine and start the VM with VM CPUS = TOTAL CPU CORES - 2 and VM MEMORY = TOTAL MEMORY - 1GB. The sway compositor is configured to automatically start virt-viewer in full screen at boot connecting to the chosen VM as well as bluetooth/pavucontrol/nm-tui in a hidden virtual desktop.

I initially built it to have a portable yet as close to bare metal experience as possible with operating systems such as Haiku that do not necessarily have all features + best hardware support but this could be totally done for a BSD. Although you rely on it to connect a new bluetooth device, wifi network, the idea is to spend the less time possible on the underlying debian host OS.

I did it manually but I should really do an ansible playbook that people can adapt to their distro of choice.