There was a thread from a week ago discussing a React IDE, that seems to have gotten more traction (though not exactly what you were looking for: https://news.

There was a thread from a week ago discussing a React IDE, that seems to have gotten more traction (though not exactly what you were looking for: https://news.ycombinator.com/item?id=11074653 https://news.ycombinator.com/item?id=11074653