Yoga
Yoga is perhaps the concept with the most sprawling and detailed notes in my Obsidian vault right now.
The most useful thing in this web for most people is the Anki flashcard deck generated from notes around Hatha yoga teacher training.
The other notes, which have more specific info, are Hatha yoga, Yin yoga, Yoga teaching, Yoga nidra.
Resources
Sequences
All the sequences I've bothered to type up properly. For Yoga teaching, I'd love to make and post these routines.