The page currently just renders https://gitlab.com/formation.tools/eng/engineering/-/raw/mai... which is effectively the file we use to align on work internally, so we're dogfooding this. Eventually, I would like to be able to just show any git repo and offer collaborative editing that effects a git commit at the end. For the WYSIWYG bit, I'll be meeting with the author of ProseMirror and CodeMirror over coffee next week (hopefully) to spar on good ways to implement this.
Roast away, good folks! I can use the feedback especially since I don't know if I'm the only idiot who wants to collab just in plaintext (without forcing my colleagues to Emacs).