I first learned about the Zettelkasten method back in the summer of 2021. I looked at a few programs for getting into it, and I settled on Obsidian MD. But I didn't like the experience: I was an avid vim user, and the vim compatibility mode wasn't usable in the least.
I had already written quite a few notes, and I didn't want to change them to make the links and tags work with other programs.
So, in early August, I had the idea of writing a standalone CLI program that I
could easily use with vim, and at the same time use Obsidian-style links and
tags. Thus, settle was born: it combines maximum human readability with the
potential to be used with any text editor, no plugins required (even if they may
improve usability).
In the meantime, I've read Sonke Ahrens's How to take smart notes and have
added many features to settle, such as projects.