I have long dreamt of automating Factorio in the way that HDL and a PCB router works: just specify the ingredients and it produces a Factorio Blueprint.

First MVP stupid designs, then optimized routing, and eventually usable ingame where it connects with provided in/outputs.

Would be more fun to develop than to play obviously..

I liked the nilhouse mega base with that factory-train-blocks blueprints, its basically Factorio DUPLO.