Any line in any file is only a few keys away. Quick navigation for Vim and Neovim : file groups, buffers, find, grep/edit, mru, frecency, sessions, yank, ...
Switching buffers and buffer groups at will in emacs. Based on MTorus : rewritten from scratch
Generalize Orgmode to Markdown and any Folding structure in Vim and Neovim. Supports Org, Markdown and any Folded file.
Useful scripts
Config files
Library of in place list operations in Emacs-Lisp