I wanted to shout out Graham Vincent Violin Maker youtube channel. He has great videos on maintaining and using woodworking tools, and various aspects of violin making. He uses reclaimed lumber whenever he can, and tried to utilize sustainable natural resources.
https://youtube.com/@grahamvincentviolins?si=XjqvjfnHZH87eKOf

I joined his Patreon and he's been very responsive to my questions. Please help boost his youtube, and if you're interested in violin making check out his Patreon!

This is relevant to my interests. One of my Great Aunts gave my Great Grandmother's violin. The lacquer is checked beyond repair and it's fingerboard is grooved really really bad. So I'll have to check out that channel. Thanks!

For repairs, I also watch a lot of
Ask Olaf the Violin Maker

I have watched a ton of
Edgar Russ
as well.  He holds onto the secrets more than others, but if you watch enough videos you can piece the info together.

Jon Mangum has excellent videos on building a violin from start to finish.

Other internet violin resources:
Mekwok Studios

Anton Somers

AV  Daniel Violin

Atelier Moreth (in German, read subtitles)

Wow, thanks, man!