BSDNow 064 (somehow, 64 seems a nicer milestone than 50) links to a huge pile of EuroBSDCon 2014 videos, including 2 DragonFly presentations.  There’s also an interview with Justin Cormack, who must be cool; I can tell from his name.  There’s a lot more material just written on the page after the video, so I’ll point you at the actual content instead of repeating.