@hummingrain To add to what others have said, you might check out Mike Zamansky's series on YouTube: https://www.youtube.com/playlist?list=PL9KxKa8NpFxIcNQa9js7dQQIHc81b0-Xg. Some of it is more intermediate-level, but it'll give you an idea of what's possible. Also for org-mode there's the classic Google Tech Talk by org-mode's creator: https://www.youtube.com/watch?v=oJTwQvgfgMM
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