Free Silicon Conference 2023, Paris, July 10-12
The most difficult thing about hardware to have 'libre' are the silicon chips. But times start changing. Hopefully.
The program of FSiC2023 contains diverse talks about chip design with open-source CAD tools open-source hardware (FPGA, ASIC).
If you are like me and hear of FSi the first time here: There is a F-Si PeerTube instance (yes this is part of the fediverse!) were one will find all the talks from FSiC2019 and FSiC2022 ready for the looksy:
https://peertube.f-si.org/video-channels/fsic2019/videos
https://peertube.f-si.org/video-channels/fsic2022/videos
There is also the FOSSi Foundation with YouTube-Channel