nix-config/modules/virtualization.nix

{
  virtualisation = {
    memorySize = 8192;
    cores = 4;
  };

  virtualisation.qemu.options = [
    "-device virtio-vga-gl"
    "-display sdl,gl=on,show-cursor=off"
    "-full-screen"
    "-audio pa,model=hda"
  ];

  environment.sessionVariables = {
    WLR_NO_HARDWARE_CURSORS = "1";
  };
}
meta: Add network example This is a working example of using the modules in our existing configuration to start a network of virtual machines with nixos-build-vms. Note that VMs take longer to start up in this case than nixos-rebuild build-vm, and that said VMs may lack certain functionality (such as dynamic resolution in GNOME) that would otherwise be present with build-vm. Although networks are certainly cute (and I'm glad that I feel familiar with them thanks to my better understanding of Nix), they do seem less convenient than nixos-rebuild build-vm and don't appear to support Nix flakes. Networks therefore seem more useful for running multiple one-off services that couldn't otherwise be ran in a container. 2023-06-18 14:06:26 +02:00			`{`
			`virtualisation = {`
			`memorySize = 8192;`
			`cores = 4;`
			`};`

			`virtualisation.qemu.options = [`
			`"-device virtio-vga-gl"`
			`"-display sdl,gl=on,show-cursor=off"`
			`"-full-screen"`
			`"-audio pa,model=hda"`
			`];`

			`environment.sessionVariables = {`
			`WLR_NO_HARDWARE_CURSORS = "1";`
			`};`
			`}`