old-spike/client/config/design/app.js

import Styles from 'config/styles';
import Templates from 'config/templates';
import createHistory from 'history/lib/createHashHistory';
import { useQueries } from 'history';
import app from './../../app';

Promise.all([
  Templates.sync(),
  Styles.sync()
]).then(()=>{
  jQuery('#compiling_layouts').remove();
  app(useQueries(createHistory));
});