Walter Hawkwood
RI Curator
Oh my eyes completely flew by the "version 3.57a" and only saw the "Dec 6 2021" above it when I last looked. If possible I would still appreciate being reminded of how to do the packing anyway out of curiosity but thank you for pointing that the installer version is the same to me.
And again, the earlier Dec 6 installer was also essentially the same version, just worse packed. As for the actual packing, it just comes down to using this utility on the Assets/Art folder: https://forums.civfanatics.com/resources/pakbuild.2384/ (no compression, store full paths; separate into files ~ 150-200Mb in size, store major asset types (terrain, structures, units etc) in separate fpk files).