WYSIWYG editor should be collaborative

[lux]

ProseMirror does collaborative editing. Switching to this, editing pages, blog posts etc. could show a separate coloured caret with associated thumbnails in a sidebar to see who's on the document. Then who has a lock on the page can go away, preventing lock-outs on editing some content.

[jbroadway]

Tiptap also seems like it could be a great option for this.