Gui needs to do the following:

• Held item as a slot (remove or change item)
• Upgrades
• Input/Output settings
• Rotation speed
• Pickup settings
• filters (if upgrade is installed)

Settings:

• drop item on output
• only use machines
• only use entities
• pickup items on ground
• pickup location (belts)
• pickup slot (inventories)
• pickup side (override inventory support)

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