anchor.diff:        ln -s ${pkgs.ghostscript}/lib/cups/filter/* $out/lib/cups/filter/
         ${cfg.bindirCmds}
       ''; # */
  -  
  -
  -  cupsdConfig = pkgs.writeText "cupsd.conf"
  -    ''
  -      LogLevel debug
  -
  -      SystemGroup root
  -
  -      Listen localhost:631
  -      Listen /var/run/cups/cups.sock
  -
  -      # Note: we can't use ${cups}/etc/cups as the ServerRoot, since
  -      # CUPS will write in the ServerRoot when e.g. adding new printers
  -      # through the web interface.
  -      ServerRoot /etc/cups
  -
  -      ServerBin ${bindir}/lib/cups
  -
  -      AccessLog ${logDir}/access_log
  -      ErrorLog ${logDir}/access_log
  -      PageLog ${logDir}/page_log
  -
  -      TempDir /tmp
  -
  -      Browsing On
  -      BrowseOrder allow,deny
  -      BrowseAllow @LOCAL
  -
  -      DefaultAuthType Basic
  -
  -      <Location />
  -        Order allow,deny
  -        Allow localhost
  -      </Location>
  -
  -      <Location /admin>
  -        Order allow,deny
  -        Allow localhost
  -      </Location>
  -
  -      <Location /admin/conf>
  -        AuthType Basic
  -        Require user @SYSTEM
  -        Order allow,deny
  -        Allow localhost
  -      </Location>
  -
  -      <Policy default>
  -        <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job>
  -          Require user @OWNER @SYSTEM
  -          Order deny,allow
  -        </Limit>
  -
  -        <Limit Pause-Printer Resume-Printer Set-Printer-Attributes Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Add-Printer CUPS-Delete-Printer CUPS-Add-Class CUPS-Delete-Class CUPS-Accept-Jobs CUPS-Reject-Jobs CUPS-Set-Default>
  -          AuthType Basic
  -          Require user @SYSTEM
  -          Order deny,allow
  -        </Limit>
  -
  -        <Limit Cancel-Job CUPS-Authenticate-Job>
  -          Require user @OWNER @SYSTEM
  -          Order deny,allow
  -        </Limit>
  -
  -        <Limit All>
  -          Order deny,allow
  -        </Limit>
  -      </Policy>
  -    '';
   
   in
   
  
positive.code:             ${modprobe}/sbin/modprobe usblp || true
            '';
  
          exec = "${cups}/sbin/cupsd -c ${cupsdConfig} -F";
        };
  
    };
    
  
negative.code:         description = ''
            Additional commands executed while creating the directory
            containing the CUPS server binaries.
          '';
        };
  
        cupsdConf = mkOption {
          default = "";
          description = ''
            The contents of the configuration file of the CUPS daemon
            (<filename>cupsd.conf</filename>).
          '';
        };
  
  