I made an Emacs mode that provides this functionality, only to find that someone else had done it better: https://github.com/emacsmirror/draft-mode https://git

I made an Emacs mode that provides this functionality, only to find that someone else had done it better: https://github.com/emacsmirror/draft-mode https://github.com/emacsmirror/draft-mode (It was still worth it: huge fun and I learned a ton.)