Authorea was built to foster collaboration amongst researchers writing together. Founded, built, and tested by physicists and engineers, our editor was initially geared towards heavy technical writing. In short, we were built to make it easy to write Markdown and LaTeX collaboratively online, because selfishly that was how we (n=3) wrote our own papers. As the platform grew and we began to realize the full potential of Authorea we realized how limited our goals would be if we only helped LaTeX and Markdown authors. Indeed, even if all the LaTeX writers in the world were writing with us, that would only represent a small fraction of researchers. We wanted to make research more robust, data-driven, and open for all researchers. We came to the conclusion to totally rewrite our editor, to make it accessible to researchers in humanities, life sciences, social sciences, as well as in math, physics, and engineering. It's a hard problem to build an editor that accommodates such a diversity of writers but with the continuing increase in cross-discipline collaboration \cite{Luke_2014,Dhand_2016} we felt it a worthwhile problem.