That currently lives here: https://github.com/wikimedia/wvui/tree/master/src/components.... This is WVUI, the component library created to serve the needs of the Desktop Improvements case study mentioned in the post here.

Some of this code may change or get moved around based on the outcome of these tasks: https://phabricator.wikimedia.org/T286946

I had no idea that a Vue component is basically a big JS object.

Reminds me of Backbone.js' views: https://backbonejs.org/#View