Evan You is the author of Vue.js and previously he used to work for Meteor and Google.
Vue.js is a library for building interactive web interfaces. The goal of Vue.js is to provide the benefits of reactive data binding and composable view components with an API that is as simple as possible.
Vue.js itself is not a full-blown framework - it is focused on the view layer only. It is therefore very easy to pick up and to integrate with other libraries or existing projects. On the other hand, when used in combination with proper tooling and supporting libraries, Vue.js is also perfectly capable of powering sophisticated Single-Page Applications.
Shoot any questions you want Evan to answer!
At one point I believe I read that the vuex API was still in consideration and that it may change. Recently I updated from 0.2.0 to 0.4.2 and there were some revisions to the API, which took some time to port over and figure out (for the better, btw). I haven't been able to find the message about the API possibly changing, do you consider vuex to be more stable now and less likely to have heavy revisions that require refactoring when updating?
Is there any tutorial to build backend (REST) API for SPA, especially those built on vue + webpack? As far as I can see, for the backend, the authorization has to support CORS and JWT. Is there any alternative? I have projects built on flask, pyramid, rely heavily on templating lang like jinja2. Some of them have grown very big. I think vuejs can take most of their work and make the code much nicer. Some refactory guide would be much helpful.