Logistics and GUI

Sided slots (hopper rules)

Machines follow the vanilla furnace convention:

• Top face: main inputs
• Horizontal faces: secondary inputs (fuel, buckets, bottles)
• Bottom face: outputs only

Hoppers feed the right slots automatically and can only extract finished products. Slots also filter items: a biogas generator's slot rejects anything that is not compostable, the apiary's bottle slot only takes glass bottles, and so on.

Auto-eject

Every producing machine has an eject toggle (the arrow button at the top right of its GUI, green when on). While on, the machine pushes its outputs once a second into any adjacent inventory: chests, hoppers, other Power Farm machines, Tech Reborn storage, anything using the standard item APIs.

Machine-to-machine ejection enables direct chains, like a Harvester feeding its overflow straight into a Biogas Generator next to it.

Side configuration

The IO button (top right) opens a popup where each of the six faces cycles through:

• Default (gray): the hopper rules above
• Input (blue): accepts all insertable slots
• Output (orange): exposes outputs, and becomes an exclusive eject target
• Sealed (dark): nothing in or out

If any face is set to Output, auto-eject only pushes through those faces. That gives precise routing: eject into the chest behind, never into the machine beside. Click the X or press Escape to close the popup. Side configuration affects items only, not energy or fluids.

GUI conventions

• Red bar (left): stored energy. Hover for exact numbers.
• Blue bar: water. Orange bar: lava fuel. Green bar (right): banked XP, click to collect.
• Empty special slots show a hint tooltip explaining what belongs there.
• Chests directly under machines can be opened normally; machines do not block them.