All these "rules" are really just guidance/suggestions... I highly recommend you try out the thing you would imagine to work and see how it goes. If it works for you, then great. If not, try something else. What works for someone else isn't necessarily going to work for you. How do you think these things came about? They really weren't invented, but slight variations on a pre-existing theme that someone customized for their needs.

It's called a "zettelkasten practice" for a reason. After you've been at it for a few months, write up your experience and let us know how it all worked out. What worked well? What didn't? Speculate on the reasons why...

reply to u/King_PenguinOs at https://old.reddit.com/r/Zettelkasten/comments/1hklaii/getting_started_with_zettelkasten/

https://www.youtube.com/watch?v=Q2zY7l2tzoQ

Ugh... another short mediocre introduction. Repeats the origin myth.

Seems to take a very Ahrens' based framing, but screws up a few pieces. More focus on "hub notes" and completely misses the idea of an index somehow?!?

The last section of 2+ minutes really goes off the rails and recommends converting notes from other places and muddles about "Favorite problems" (ostensibly a reference to Feynman's 12 Favorite Problems, but isn't direct about it?).

Also encourages the "Feynman technique"...