Hey, I got one!
I have been recently trying to get OFF all the cloud based apps that I used to use. Like, for instance, Workflowy. I loved it, it was easy to organize things, but I don't want to need to be hooked up to the internet in order to work on my own notes.
Anyway, I did a lot of looking around for stuff that would suit me. Didn't need a lot of bells and whistles, I basically just wanted easy outlining. And I didn't find anything open source that I liked.
Then I figured out a way to do it, easily, in Notepad++, with the feature of folding/unfolding.
In Notepad++, under Language, User Defined Language, you can create your own user defined language. It's very simple. I set the character for defining what to fold (I used square brackets), set an extension for the file type, assigned keyboard shortcuts for folding and unfolding, and VOILA! Something that works very well for me. No yearly payment needed, and I don't need to be connected to the internet in order to be able to work on things!
I love the simplicity of Notepad++, even for editing regular documents, not code.
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