I’ll start by plugging Harvard’s free courses catalog as well as Udemy
Edit: Gonna add 2 more I remembered-
Blender - I wish I had more time to learn it, but I did start the infamous “Donut Tutorial” once!
Watch Cartoons Online - Lots of good older stuff!
I think they use to call it two trees a year and then went to cubic meters. Probably someone taking out the giants of the forest that inspired the change.
I could run a fairly decent woodworking racket given 10 cubic meters a year. Does that include branches and such?