GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
Read( "ReducedBasisOfModule.g" ); W := Hom( Qxyz, W ); d := Resolution( W ); dW := d * W; EdW := Ext( 1, dW, W ); C := Cohomology( EdW ); Display( StringTime( homalgTime( Qxyz ) ) );