GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
_NORMALIZ_SO:=Filename(DirectoriesPackagePrograms("NormalizInterface"), "NormalizInterface.so");
if _NORMALIZ_SO <> fail then
LoadDynamicModule(_NORMALIZ_SO);
fi;
Unbind(_NORMALIZ_SO);
ReadPackage("NormalizInterface", "lib/normaliz.gd");
ReadPackage("NormalizInterface", "lib/cone_property_wrappers.gd" );