{ config, pkgs, lib, ... }:
{
  config = lib.mkIf (config.networking.hostName == "FredOS-Gaming") {
    # KVM-based VM stack for running a Windows guest (mainly: the DR client
    # mod is wine-incompatible and has to run on real Windows). virt-manager
    # is the GUI; OVMFFull provides UEFI firmware with the Secure Boot bits
    # Win11 needs, and swtpm gives the guest a software TPM 2.0 to satisfy
    # Win11's install check.
    virtualisation.libvirtd = {
      enable = true;
      qemu = {
        swtpm.enable = true;
        ovmf = {
          enable = true;
          packages = [ pkgs.OVMFFull.fd ];
        };
      };
    };

    programs.virt-manager.enable = true;

    users.users.fred.extraGroups = [ "libvirtd" ];

    environment.systemPackages = with pkgs; [
      virt-viewer
      virtio-win
    ];
  };
}