I had a high-end webcam that flickered

> I had a high-end webcam that flickered. There should be switch in the software to switch from 50hz to 60hz that'd fix it but it was nowhere to be found. Similar issue, although I'm not sure if it's the Logitech webcam or just how webcams are automatically configured on Linux these days in general: if I use a really bright LED lamp, the automatic exposure time goes down to the point that it doesn't matter if the webcam is set to 50hz or 60hz, it's going to catch flickering from other subtle frequencies affecting light output. I've also had situations where I wanted to use it to film a white piece of paper that I'm writing on, but it automatically adjusts exposure to make it gray instead. It took me forever to find something with a straightforward GUI that lets me manually override this behavior on Linux. I ended up settling for cameractrls. https://github.com/soyersoyer/cameractrls

One anecdote about a piece of Logitech hardware: My once top of the range Brio USB 3.0 webcam produces so much high frequency EMI that GNSS receivers in its vicinity completely fail to operate across all bands (1.1 - 1.6 GHz). I had to disconnect it and use it from elsewhere, otherwise my lab dies. I have tens of others USB 3.0 devices that don't do this.

Honestly, I'm always blown away by accounts if "so I just wrote a binary switcher" dropped casually like this. I'm a software engineer and have been for over five years, but wouldn't even know where to _begin_ with something like that. Well, I would, I'd end up vibecoding a slop solution I didn't really understand. How did you know / learn how to write a binary switcher?