How do you keep track of your worldbuilding notes?

Who would have thought creating an entire world would be so complicated and interconnected, but here we are. How do you keep track of it all?

I've used Obsidian for the Lonely Galaxy. I try to write up a topic there before posting it here or on the CBB. I also have a wiki that largely consists of polished (or not so polished) versions of those notes as well as forum posts I never bothered to document properly.

For conlanging I've been all over the place and back again. The grammar is easy enough. I just write in markdown. The lexicon is much harder because it needs to be searchable. I've tried Excel, Obsidian, TiddlyWiki, a JSON file, and currently a CSV file. I wish I could commit to one and stick with it but at this point I'm impressed I was able to preserve the lexicon through so many different formats.