anchor.diff:      #../upstart-jobs/dbus.nix # services.dbus.*
       options
     ];
  +  
  +  environment.systemPackages = [ pkgs.disnix ];
   
     services = {
       extraJobs = [job];
   
       dbus = {
         enable = true;
  -      packages = [pkgs.disnix];
  +      packages = [ pkgs.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: ###### interface
  let
    inherit (pkgs.lib) mkOption;
    
    options = {
      services = {
        disnix = {
          enable = mkOption {
            default = false;
            description = "Whether to enable Disnix";
          };        
        };
      };
    };
  