For the last few years I have been using Markdown for note taking and documentation. I find the syntax quick and easy to use and can be read by numerous applications. If I care to share a document it’s as easy as sending .md files around, uploading to my hugo site, or by creating a mdwiki from it.
In the beginning I was more concerned about being that linux guy that did everything via the commandline and I would do all my editing in vim.