Still have an Ember app that was last touched in 2016 other than library updates working perfectly in production earning millions of dollars. The React replacem

Still have an Ember app that was last touched in 2016 other than library updates working perfectly in production earning millions of dollars. The React replacement we struggled with took many man-years longer to develop and is still not as easy to deal with. With Ember we went through the entire 2 way binding -> DDAU transition in the middle of developing the app (and many other transitions, since we started with a pre 1.0 version of the framework), but the core team did such a fantastic job of making the transition as easy as possible that I don’t have a single nightmare from those days. In fact it seemed completely uneventful.