Belt Immunity
- Character entity will not be moved by conveyor belts.
- Technology for the equipment is hidden from the tech tree
- Recipe for the equipment is hidden from crafting menus.
Full source code, for your consideration:
data.raw.character["character"].has_belt_immunity = true
data.raw.technology["belt-immunity-equipment"].hidden = true
data.raw.recipe["belt-immunity-equipment"].hidden = true