VNote
VNote homepage
This is just a very simple, fast to operate note taking application that can organize your notes into notebooks and such... it uses markdown, which is rendered in real-time too.
Unlike Joplin, this application is already stable.
It's open-source, AppImage available at https://github.com/tamlok/vnote/releases/download/v2.7.2/VNote-2.7.2-x86_64.AppImage
Source tarball: https://github.com/tamlok/vnote/archive/v2.7.2.tar.gz
It renders Markdown in the editor itself as you type.
Has a robust folder organisation structure, similar to a code editor, to help with larger projects.
Supports document outlines
This has sat in accepted for inclusion for over 30 days. Clearly, there is a lack of demand for the inclusion of this software, nobody has stepped up to provide a completed patch, maintain it, and properly integrate it. Closing as a result. Feel free to reopen but only when someone offers a patch via our proper patch submission methods and volunteers to be maintainer.