Why not link to the official recording ?
https://media.ccc.de/v/39c3-liberating-bluetooth-on-the-esp3...
I for one am surprised that ESP32 hasn't been reverse engineered much earlier, judging by its popularity
This unlocks some really nice stuff in the future!
Meanwhile I still cannot get Bluetooth audio to work on my Linux workstation. I tried 3 different Chinese USB sticks already and asked ChatGPT for help. Maybe I should give up and try some more expensive brands. But keep in mind that ESP32 is also of Chinese origin.