If you want to start using Emacs as your text editor, I recommend starting from Doom Emacs.
Emacs
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Org Mode
Although Markdown is good enough for 📓 Zettelkasten, wikis and such (cf. Emanote), for writing outline content Org Mode in Emacs shines the best.
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Adding a neovim plugin: telescope.nvim
The telescope.nvim plugin gives us Doom Emacs-like fuzzy finder for standard editor operations, like opening files or switching buffers.