Arena FPS

Lately my YouTube feed has been flooded with Tiago Forte and his book, Building a Second Brain, which I might get soon but I haven’t read yet.* I’ve been interested in the idea of creating a knowledge base for a long time but I never found quite what I was looking for in terms of software. I really wanted a non-hierarchical system like MediaWiki, but with a more easily maintainable storage mechanism than a relational database.