OSDC 2015 was amazing. Thank you so much to the organisers and volunteers and everyone who spoke and attended. It was a very good couple of days.
My entire tweet stream from OSDC 2015
 Update 2015-11-09 - Matthew informs me that he has presented before, albeit short talks, at both Software Freedom Day 2014, and the Sysadmin Miniconf at Linux Conference Australia 2014. However, OSDC marks his first full-length talk at a conference, and I think that’s a pretty significant milestone :)