Proof of concept - Did you know we could sort zombies this way using night? I discovered it by accident, I was so excited!
I made an overcomplicated 3x3 piston door. I know it's bad, but it's my first ever attempt and I'm proud
Final design of my piglin barterer. 60 piglins, 200k drops/h, 99.997% efficiency. Each batch of items does multiple rounds over the sorters, compensating for the inherently random rates from bartering RNG (and looking cool)
If you want a cool trading system you can use a drowned with trident to convert villagers in zombies without having to move the villagers