anchor.diff:          serviceConfig.RemainAfterExit = true;
         };
   
  +    users.extraGroups.libvirtd = {};
  +
     };
   
   }
  
positive.code:         description =
            ''
              This option enables support for QEMU/KVM in libvirtd.
            '';
        };
  
  
negative.code:             done
            ''; # */
  
          serviceConfig.ExecStart = ''@${pkgs.libvirt}/sbin/libvirtd libvirtd --config "${configFile}" --daemon --verbose'';
          serviceConfig.Type = "forking";
          serviceConfig.KillMode = "process"; # when stopping, leave the VMs alone
  
  