I finished adding the "Understanding Ocaps" section to OcapPub, now linking them to normal developer code flow and ordinary human social relationships. https://gitlab.com/spritely/ocappub/blob/master/README.org
I know, this document is already long enough! The next part is How to Build It, I promise. But you should be well prepared in your mind to think like an ocap person for when I add the how-to-build-it section now.