Not only past Congresses but when it's going on they live stream the vast majority of the talks. There are also "signal angels" that will relay questions asked

Not only past Congresses but when it's going on they live stream the vast majority of the talks. There are also "signal angels" that will relay questions asked on IRC to the speaker if you're looking for more direct participation. It's an awe-inspiring system to behold, and frustrating that not all "technology" conferences have adopted this level of wide-spread engagement. It's quite literally the most accessible conference for remote attendees and has been for years. They even live translate talks into multiple, other languages! I'm a big fan of the CCC and have never tried to travel to attend. Attending remotely is such a convenient experience. The only disappointing part is missing out on incidental conversation and of course the sticker operations. https://events.ccc.de/ https://events.ccc.de/