anchor.diff:      # Some PXE constellations especially with dnsmasq are looking for the file with .0 ending
       # let's provide it as a symlink to be compatible in this case.
       ln -s undionly.kpxe $out/undionly.kpxe.0
  +
  +    runHook postInstall
     '';
   
     enableParallelBuilding = true;
  
positive.code:   buildFlags = lib.attrNames targets;
  
    installPhase = ''
      mkdir -p $out
      ${lib.concatStringsSep "\n" (lib.mapAttrsToList (from: to:
        if to == null
  
negative.code:   meta = with lib;
      { description = "Network boot firmware";
        homepage = "https://ipxe.org/";
        license = licenses.gpl2Only;
        maintainers = with maintainers; [ ehmry ];
        platforms = platforms.linux;
      };
  