I've got an understanding of some things... while reading this. not necessarily its the things that you menat, lets say, my mind rised for a bit higher level of abstraction.
on another hand, I did not understand completely some details in the description... which doesnt mean they are descibed poorly. no! you did the best, its just my understanding of some crypto / chain basics is lacking. !ENGAGE 50 - and all the best.
Many concepts, other users securely know how to explain better. As usual, I try to do with my little knowledge. If the problem concerns the second layer, I'll write a post with an explanation soon using metamask