Maybe I'm missing something, but this repo seems to be 2 days old so you cannot have encountered it a few weeks ago. There were perhaps a few short form videos showing the project in development, but that seems a bit shallow for a deep dive into the specifics of where the magic comes from.
It's available for $303 right now on amazon. I also reverse engineered the protocol from scratch using PacketLogger. It looks like my agent also used Respira to verify the implementation. With that said, the entire app was built with AI.