Functional Storage drawers for what isn't an item or a fluid: Energy (2 billion FE), Mekanism chemicals and Ars Nouveau Source. Same upgrades, same Storage Controller, framed variants for all.
Factorio's inserters and belts, in Minecraft. Machines that move items on their own, and belts that carry them — between the inventories you already have.
A dead civilisation ran on energy that never touched a wire. Wake its outposts, learn to read a field you cannot see, and follow it down five tiers to the Rift.
