GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#g2 f3 %almost decomposable bravais-group 4x4 0 -1 0 0 1 0 0 0 0 0 0 -1 0 0 1 0 4x4 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 4x4 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 4x4 0 0 0 1 0 0 -1 0 0 -1 0 0 1 0 0 0 4x4 0 0 1 0 0 0 0 1 1 0 0 0 0 1 0 0 2^3 = 8 % order of the group