anchor.diff: -# D-Bus system-wide daemon.
  -{pkgs, config, ...}:
  +# D-Bus configuration and system bus daemon.
  +
  +{ config, pkgs, ... }:
   
   with pkgs.lib;
   
  
positive.code: 
    systemServiceDirs = concatMapStrings
      (d: "<servicedir>${d}/share/dbus-1/system-services</servicedir> ")
      cfg.packages;
  
  in
  
negative.code: 
          daemonType = "fork";
  
          exec = "${dbus}/bin/dbus-daemon --system";
  
          postStop =
            ''
  