https://www.bsdcan.org/2019/schedule/events/1055.en.html
Recordings tends to show up YouTube.. later. This talk was also live-streamed earlier today.
Video from previous years: https://www.youtube.com/channel/UCuQhwHMJ0yK2zlfyRr1XZ_Q/vid...
I'm always surprised this conference isn't larger, it always has a wide breadth of low-level technical C/systems talks, with a mix of Unix/networking sysadmin content.