My brother, what you need is Obsidian if you're looking to create a knowledge repository digitally. I've been ranting off and on about Obsidian for a bit, and I use it for everything - D&D planning, my personal journaling, and my work knowledge.
It's free, it's insanely easy to use, and you can see how your notes connect to various concepts and such.
Oh wow...Thanks so much for this!
Here you go!
Perfect, thanks so much!
I hope it helps!
It uses a wiki style linking system, so you... you know what, one second and I'll upload a quick example to 3speak and link it - seeing it in action is amazing when you watch someone who kind of has a handle on it.