nixos/roles/virtualisation.nix

{ pkgs, config, lib, ... }:

let
  cfg = config.my.roles.virtualisation;
in {
  options.my.roles.virtualisation.enable = lib.mkEnableOption "Enable tools for virtualisation";
  config = lib.mkIf (cfg.enable) {
    virtualisation.libvirtd.enable = true;
    environment.systemPackages = with pkgs; [
      qemu_full
      qemu-utils
    ];
  };
}