anchor.diff:        };
   
       environment.systemPackages = [ cups ];
  +
  +    environment.variables.CUPS_SERVERROOT = "/etc/cups";
  +
  +    environment.etc = [
  +      { source = pkgs.writeText "client.conf" cfg.clientConf;
  +        target = "cups/client.conf";
  +      }
  +    ];
   
       services.dbus.packages = [ cups ];
   
  
positive.code:         '';
        };
  
        drivers = mkOption {
          type = types.listOf types.path;
          example = literalExample "[ pkgs.splix ]";
  
negative.code:   bindir = pkgs.buildEnv {
      name = "cups-progs";
      paths = cfg.drivers;
      pathsToLink = [ "/lib/cups" "/share/cups" "/bin" "/etc/cups" ];
      postBuild = cfg.bindirCmds;
    };
  
  