This is fun! I'm looking forward to the patch adding the ability to save/load.
Is there (or will there be) any way to automatically send a material from a warehouse to a factory? I've tried pumps and ports, neither seems to work. It makes sense a pump (as it's currently working) wouldn't work since it only holds one element at a time, and it might grab an element the factory doesn't need. But I would think this would be the sort of thing a port would be good for.