A new post popped up in Feedly on the HF blog. Apparently published 4/24. Gee, just 6 days to get to Feedly, or at least for me to find it. See: High Fidelity System Architecture. As the name suggests it explains how HF will work. The blog has the image I show and you can get a PDF version of the image.
The blog article is open to comments. People are asking questions and Philip is answering. There is interesting information in there. I also found it interesting which questions he didn’t answer.