There will be some Open Hardware talks this year at FOSDEM (Feb 5th and 6th), and since the whole event is online and recorded, I am leaving links here in case people are interested.
If you know of any other open hardware talks at FOSDEM, please include them here!
I’ll be giving a presentation on CadQuery (open source CAD) in the same devroom as the KiCAD presentation, and there are going to be some other topics there that might interest the members of this forum.
Glad to know about the GitBuilding presentation. I hadn’t seen that one yet.
Thanks for the info @jmwright ! Added to the list above 
I am interested in this.