This has been here a few times. Here's a link to a discussion a couple of years ago. I've found it to be an interesting project, though well outside my field of expertise.
I am a big fan of machining and metal working videos. Whatever changes YouTube did last year basically gutted that niche, with many channels simply abruptly giving up mid project.
I have no idea what exactly they changed but from my perspective as a casual viewer it had a large and negative impact.
https://news.ycombinator.com/item?id=14783539