The project is now at a point where contributions would make sense -- the API is documented, and the design somewhat stable. The area I'd most like help with is finding and resolving bugs -- strange browser behavior (contentEditable is a fountain of strange browser behavior) and issues on mobile. I'm still too busy moving the larger pieces forward to spend a lot of time testing.
Don't know about ProseMirror but I found the documentation for writing CodeMirror syntax highlighters to be very scarce.. The syntax files themselves look like huge procedural JS files with barely a comment :(
But apart from that, CM works like a charm out of the box, so thanks a ton for it :)
You should make a new post about that then, "ProseMirror Now accepting contributions!" and post it here on HN ;) Seems a lot of people here would support it.
