I was mentioning Audrey's talk about Jifty to a friend, but had more troubles locating it than I would have expected. (Although I retried now and could do so with virtually no efforts at all in two different reasonable ways. Maybe I was just not being reasonable. Happens.) So I'm posting here the link I meant both as a reminder to myself, and for others to see it.
Indeed I find the talk quite impressing and instructive, even within the limits a talk can be without the accompanying speech.