Emacs and vim are way too complicated to just jump directly to the source code. Try something smaller and more manageable. I would personally recommend vis[1].

Emacs and vim are way too complicated to just jump directly to the source code. Try something smaller and more manageable. I would personally recommend vis[1]. Also, take a look at https://texteditors.org/ https://texteditors.org/ to discover new editors and resources on design and implementation [1]https://github.com/martanne/vis https://github.com/martanne/vis