Building a CPU in Factorio: From D-Flip-Flops to an Operating System [video] (youtube.com)

I built D-Latch in Factorio. it enabled me to take snapshots of logistic network. which made possible to set full list of recipes of items to produce (has a mechanism that adds subrecipes too). got around 100 optimized assemblies that happily buzz and create whatever is necessary. dynamic fluid handling included