There off switches for creeper farm is lights up the area so no creepers. Also there off switches for the sugarcane/melon+pumkin farms so pistons don't cause lag. The only off switch missing is guardian farm but no clue how i do that guardians will always spawn in the water so i don't know how to turn it off.
There plenty of ink sac there if you need black dye or making a written book if you don't want to buy a Neo Farm pass to access my squid farm in a different location!