I know you're asking for collaborators and not recommendations for tools, but since you were mentioning Chrome Devtools I wanted to make you aware of kite.el [1

I know you're asking for collaborators and not recommendations for tools, but since you were mentioning Chrome Devtools I wanted to make you aware of kite.el [1] which I believe TV Raman had working with Emacspeak [2] at one point. kite.el is unmaintained, but it might make for a good starting point? [1] http://github.com/jscheid/kite http://github.com/jscheid/kite [2] http://emacspeak.sourceforge.net/ http://emacspeak.sourceforge.net/