I'm trying out a couple of solutions for note taking. I currently use notion. I tried out roam and foam. Roam not being open source and the list based approach I don't like. The block links I like a lot. Foam doesn't have block links. I usually take math notes and for that this kind of cross linking is extremely useful. I read on the github page that Dendron is using Katex as its latex engine. Are macros like "newcommand" also supported?