For the uninitiated, here is a description of what it is: https://www.shuomi.me/blog/what-is-the-zettelkasten-research-method
As a side note it is important to not use the system as just a dump of ideas and loose notes. Those are good as a starting point but I would recommend that you go through your loose notes and ideas twice every week. This is so that you can either make them permanent notes or just throw them away.
One last thing is that I have found that the combination of this + anki makes it really easy for me to commit stuff to memory and really speeds up my learning process by a huge margin. I wish I had discovered this way of reading and learning when I was in uni xD