I copied ImpulseSV AFK-able Potato/Carrot Farm (he converted it into a bonemeal farm) to Bedrock Edition, and tried to make a workaround since villager mechanics in Java differs in Bedrock. It works
Roho The Cat on Twitter: "#RohoTheCat invites you to watch his new tutorial on how to build a fully automatic carrot or potato farm in #Minecraft https://t.co/1ozbOfMUJu ~Minecraft with a touch of
Fully automatic Carrot and Potato farm. Stackable design, survival Xbox one. It's pretty darn efficient. And now I have and endless supply to start trading with. Good times. : r/Minecraft