Require.js Init

app.js

define([
  'backbone',
  ], function(Backbone){
  
	Backbone.LayoutManager.configure({
		// Override render to use Handlebars
		render: function(template, context) {
			return Handlebars.compile(template)(context);
		},
		
		paths: {
			layout: "../templates/layouts/",
			template: "../templates/"
		},
	
		fetch: function(path) {
			var done = this.async();
	
			$.get(path + ".html", function(contents) {
				done(contents);
			});
		},
	
		render: function(template, context) {
			return Handlebars.compile(template)(context);
		}
	});

  var Router = Backbone.Router.extend({
  ...
  });

main.js

require.config({
  paths: {
		...
  },

	backbone: {
		deps: ["underscore", "jquery", "handlebars"],
		attach: "Backbone"
	},

	underscore: {
		attach: "_"
	},
	
	jquery: {
		attach: "$"
	},
	
	handlebars: {
		attach: "Handlebars"
	},

	"libs/backbone/backbone.layoutmanager": {
		deps: ["backbone"]
	},
});

require(['views/app'], function(Router){
  var router = new Router;
});