It is an experiment to learn how to use logic circuits. The brain module in the center knows all the basic recipes + those useful for construction (factories, belts, electric poles, inserters, turrets, robots) as well as intermediate recipes. You can change the recipe choice and recipe priority per module, but also for each factory. There are still some optimizations to be made, hence the beta, in Nauvis orbit there are not enough asteroids to fully evaluate the different settings. If you're curious and don't mind electrical cable cobwebs (I'm bad at cable management), you can always try. There will surely be more advanced versions, with the science packs in particular since there is still space. You can also start from this base and complete it as you wish :)