New Twiddle

controllers.application.js

import Ember from 'ember';

let Person = Ember.Object.extend({
  name: 'default name'
});

let mike = Person.create({});
console.log(mike);

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  person: mike
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
{{person.name}}

twiddle.json

{
  "version": "0.8.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.2",
    "ember-template-compiler": "2.5.1"
  }
}