So I noticed something peculiar about the rust deoxidizer:
What's the purpose of that duplicated button?
I have never seen it anywhere else before.
I tested it in debug mode and it seems to only stop salt delivery to the machine. Rust is still delivered, either by autosweeper or duplicants.
What would be the purpose of only delivering rust? And even if it disabled all deliveries, I usually just use "Disable building", the automation port or even cut off power for this pu