Simple cobblestone farm, no drills!

Cobblestone regenerates instantly when broken by a drill, breaking collection by millstone.

I'm made a simple, efficient, compact, and powerful automatic farm! This consists of create extruders and decoded it to produce tuff XD. Then on the top belt are 5 drills which is a cobblestone gen then go directly to the crushers that will produce gravel and make use of flint to create andesite.