I like storing the information at a central place where it gets
collected and condensed, on the mailing list it is quickly lost in
Yes, me too, that is why I was suggesting it, wherever that is possible :).
Concerning the graph, I'm also struggling with it ;-)
Yes me too :) These days I will be switching between reading the documentation more carefully to see what information is more relevant for creating the videos, playing with guix commands I have not tried yet, and also playing with the suggested tools for creating the videos.