Here is my draft on a new documentation aims at people interested in learning about technical details of the lifecycle of ASDisplayNode, as well as its interface and loading states. Hopefully it'd be useful for others who want to ramp up and hopefully start contributing to the framework.
Let me know if there are other topics I should cover, or anything I should explain more/dig deeper, or something that is wrong/no longer valid (imposter syndrome much!). Cheers!