Why not link to the official recording ?
https://media.ccc.de/v/39c3-liberating-bluetooth-on-the-esp3...
C3 also pushes to YouTube: https://youtu.be/q-_YVIIrF6A
The bot posts what @bsandro posted on lobsters https://lobste.rs/s/n7u47v/liberating_bluetooth_on_esp32
C3 also pushes to YouTube: https://youtu.be/q-_YVIIrF6A