[vavooom]

Sounds like you are looking for a Zettelkasten [1], which is a way of organizing notes around a loose linked structure. I use Obsidian[2] for mine!

[1] https://en.m.wikipedia.org/wiki/Zettelkasten#:~:text=A%20Zet....

[2] https://obsidian.md/

[xypage]

+1 for obsidian, I love it. I've tried for years to make Zettelkasten work for me and have struggled to fully commit with atomic notes but in attempting I stumbled upon obsidian and even if you aren't going full Zettelkasten with it it's a 10/10 markdown editor