Virtual Machine
Example on how to set qemu options
sh
QEMU_OPTS='-m 8192 -vga qxl' nix run path:vm#vm
QEMU_OPTS='-m 8192 -device virtio-vga-gl -display gtk,gl=on' nix run path:vm#vm
You can build it and see what the script for starting the VM looks like
sh
nix build path:vm#vm