@mattcen I've heard that FOSDEM did manage to pull off an excellent online conference but did not attend, myself. But the .au conferences are leaps and bounds ahead of everything else that I have attended.
So much so that even within the .au conferences you can tell who's a first-timer and who's a regular speaker. The regulars know what the quality of their (friendly) competition is, and aim for that.
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!