IIRC only a few of the warehouses are the highly automated ones where shelves are brought to pickers, most are still people walking isles with carts, biorobots

IIRC only a few of the warehouses are the highly automated ones where shelves are brought to pickers, most are still people walking isles with carts, biorobots (to borrow a Chernobol term) of a sort but with less radiation (more bear mace though).