anchor.diff:        '';
       };
   
  -    virtualisation.libvirtd.qemuPackage = mkOption {
  +    qemuPackage = mkOption {
         type = types.package;
         default = pkgs.qemu;
         description = ''
  
positive.code:       '';
      };
  
      virtualisation.libvirtd.onShutdown = mkOption {
        type = types.enum ["shutdown" "suspend" ];
        default = "suspend";
        description = ''
  
negative.code:     systemd.sockets.virtlockd = {
        description = "Virtual machine lock manager socket";
        wantedBy = [ "sockets.target" ];
        listenStreams = [ "/run/${dirName}/virtlockd-sock" ];
      };
  
      systemd.services.virtlockd = {
  