I can't say I understand everything he talks about, but it's interesting and in-depth.
What Happened to the 100,000-Hour LED Bulbs? via @hackaday
Makerdon is a Mastodon instance focused on Makers, Open Source Hardware (OSHW) and STEM/STEAM. Free and Open Source Software (FOSS) is a likely topic as well. If you're interested in making things, allowing others to build on your work, and/or teaching others about making things, you might like this instance.