Ask HN: Useful Casual Watch Topics

I'm looking for new topics to watch while winding down late at night. When I say useful I mean geared towards technology/career growth/some form of learning. But it can't be too heavy.

I have a backlog of algos, specific tech to watch but those you need to sit down and pay attention.

I primarily watch basic PCB design/fab videos, I try to avoid new tech like laptop reviews just because it's consumer related/already have enough devices.

Other examples too in depth, designing an 8bit CPU, it's interesting but too much to pay attention to.

On the podcast side I have a lot to pick from mostly talking about software or hardware development.

People building neat things works too, regarding robotics, navigation, homestead.