Comment by dude01

I've been using https://github.com/vimoutliner/vimoutliner for a decade now. It works well. It's so easy to backup, since it's just text files. And you can just use grep and other standard tools to look for content. I believe it's the vim-counterpart to emacs org-mode.

I've been forced to use MS OneNote for one contract, since the laptop is locked-down. Works ok, but search-ability and keyboard-only usage sucks in comparison.