Exact same problem here. I've written ~20k LOC non trivial web app in Ember and getting someone into the project that didn't had prior experience in Ember was r

Exact same problem here. I've written ~20k LOC non trivial web app in Ember and getting someone into the project that didn't had prior experience in Ember was really tough. Then we were thinking about Vue too and like in your example, that person picked up Vue in around a week also.