The Builder's fair to me is always my favourite and I will miss talks to ensure I get to go to every Builder fair booth. I think lots of the projects end up on Github but there's no coordinated effort to collect them all for consumption afterwards which is a shame so they are hard to find which is a shame.
Maybe Helen ran into Hiro here on DEV.to:
Since I wasn't able to attend luckily there is excellent recap for streams:
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.