In a short paragraph it’s simply not possible to tell you every thing that was there every area of open source software was represented, there’s something for any and everyone. I was particularly interested in the Linux on ARM /ARM64 talks and robotics tracks and no doubt I’ll be talking about these at some latter date
There are also developer rooms where project members can get together and code as well as the normal stalls of Companies and open Source projects.
It should be noted that although they give you the opportunity to donate the entire event is free to attendees, flight and hotel for 3 days was less than £200 a bargain!!