[throwbadubadu]

"Demystifying" is a big word for what the original docs document quite well, and is also not like you couldn't read and understand that in few hours, if you are not totally foreign to protocol design and serialization? This post gives even much less information?!

[foooorsyth]

Yeah, this page is quite clear: https://protobuf.dev/programming-guides/encoding/

Nothing mystical about it