anchor.diff:  ###### interface
   let
     inherit (pkgs.lib) mkOption;
  -
  +  
     options = {
       services = {
         disnix = {
           enable = mkOption {
             default = false;
             description = "Whether to enable Disnix";
  -        };
  -        
  -        activateHook = mkOption {
  -          default = "";
  -          description = "Custom script or executable that activates services through Disnix";
  -        };
  -
  -        deactivateHook = mkOption {
  -          default = "";
  -          description = "Custom script or executable that deactivates services through Disnix";
  -        };
  +        };        
         };
       };
     };
  
positive.code: 
        start on dbus
        stop on shutdown  
            
        respawn ${pkgs.bash}/bin/sh -c 'export PATH=/var/run/current-system/sw/bin:$PATH; export HOME=/root; export DISNIX_ACTIVATE_HOOK=${cfg.activateHook}; export DISNIX_DEACTIVATE_HOOK=${cfg.deactivateHook}; ${pkgs.disnix}/bin/disnix-service'
      '';
    };
  in
  
negative.code:     #../upstart-jobs/dbus.nix # services.dbus.*
      options
    ];
    
    environment.systemPackages = [ pkgs.disnix ];
  
    services = {
      extraJobs = [job];
  
      dbus = {
        enable = true;
        packages = [ pkgs.disnix ];
      };
    };
  }
  