apologies for the lack of a tutorial; we'll update the page asap with a short gameplay guide/tutorial. a few of my friends also found this part a bit challenging, so thanks for the feedback! :3 for your issue, if you pay attention, every tile type has arrows indicating input and output, their color indicated the item type. for the 'nutrient maker', it requires 'extracellular fluid' from producers on both sides to produce 'nutrient jelly'. you can also use 'nutrient jelly' to create veins for moving items around. (they work like belts!)

hope this helps! <3