New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  items: ['Test','Test2','Test3'],
  actions: {
  	demo(){
  
  	}
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
YTest
{{#each items as |items|}}
<br> Hello {{items}}
{{/each}}

<br>
<div>
<div class="layout-row">
{{#paper-button raised=true warn=true}}warn{{/paper-button}}

</div>
</div>

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "scss":"https://github.com/miguelcobain/ember-paper/blob/master/app/styles/ember-paper.scss",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-paper": "1.0.0-beta.13",
    "ember-cli-sass": "8.0.1"
  }
}