diff --git a/index.js b/index.js
new file mode 100644
index 00000000..3344fcbf
--- /dev/null
+++ b/index.js
@@ -0,0 +1,24 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+// This is the main file that will be loaded when urth-widgets is required in an
+// npm environment.
+//
+//module.exports = function createDefine(targetModule) {
+//    var amdefine = require('amdefine')(targetModule, require);
+//
+//    return function define() {
+//        var args = Array.prototype.slice.call(arguments);
+//        //if (args.length > 1) {
+//        //    args[0] = args[0].map(function(arg) {
+//        //        if (arg === 'jqueryui') arg = 'jquery';
+//        //        arg = arg.replace('nbextensions/widgets/widgets/css/', '../css/');
+//        //        arg = arg.replace('nbextensions/widgets/components/require-css/css!', '');
+//        //        return arg;
+//        //    });
+//        //}
+//        amdefine.apply(this, args);
+//    };
+//};
+
+require('./dist/urth_widgets/js/init/init');
diff --git a/nb-extension/js/init/init.js b/nb-extension/js/init/init.js
index ae41ef5b..7da9fc2e 100644
--- a/nb-extension/js/init/init.js
+++ b/nb-extension/js/init/init.js
@@ -7,12 +7,22 @@
  * Loads the web component polyfill and all web components specified in
  * elements.html.
  */
+debugger;
+// npm compatibility
+function requireLocalFiles() {
+    require('jquery');
+    require('../widgets/DeclWidgetModel');
+}
+
+if (typeof define !== 'function') { var define = require('amdefine')(module, require); }
+
 define([
     'require',
     'jquery',
     '../widgets/DeclWidgetModel'], function(require, $) {
     'use strict';
 
+    debugger;
     function loadComponents(bower_root, links) {
         console.debug('Bower root is: ', bower_root);
 
diff --git a/nb-extension/js/widgets/DeclWidgetModel.js b/nb-extension/js/widgets/DeclWidgetModel.js
index 4747ad16..cc3a79dc 100644
--- a/nb-extension/js/widgets/DeclWidgetModel.js
+++ b/nb-extension/js/widgets/DeclWidgetModel.js
@@ -1,10 +1,35 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+// npm compatibility
+function requireLocalFiles() {
+    require('../../../../node_modules/jupyter-js-widgets/static/widgets/js/manager-base');
+    require('../../../../node_modules/jupyter-js-widgets/static/widgets/js/widget');
+}
+
+if (typeof define !== 'function') {
+    var amdefine = require('amdefine')(module, require);
+
+    var mapping = {}
+    mapping['nbextensions/widgets/widgets/js/manager'] = '../../../../node_modules/jupyter-js-widgets/static/widgets/js/manager-base'
+    mapping['nbextensions/widgets/widgets/js/widget'] = '../../../../node_modules/jupyter-js-widgets/static/widgets/js/widget'
+
+    var define = function(){
+        debugger;
+        var args = Array.prototype.slice.call(arguments);
+        if (args.length > 1) {
+            args[0] = args[0].map(function(arg) {
+                arg = mapping[arg] || arg;
+                return arg;
+            });
+        }
+        amdefine.apply(this, args);
+    }
+}
+
 define(["nbextensions/widgets/widgets/js/manager",
-    "nbextensions/widgets/widgets/js/widget",
-    "base/js/namespace"
-], function(widgetmanager, ipywidget, IPython) {
+    "nbextensions/widgets/widgets/js/widget"
+], function(widgetmanager, ipywidget) {
     "use strict";
 
     /**
@@ -33,7 +58,7 @@ define(["nbextensions/widgets/widgets/js/manager",
         this.comm.send(data, callbacks);
     };
 
-    widgetmanager.WidgetManager.register_widget_model('DeclWidgetModel', DeclWidgetModel);
+    widgetmanager.ManagerBase.register_widget_model('DeclWidgetModel', DeclWidgetModel);
 
     return DeclWidgetModel;
 
diff --git a/notebooks/examples/urth-scala-widgets.ipynb b/notebooks/examples/urth-scala-widgets.ipynb
index 267b8f60..0557d653 100644
--- a/notebooks/examples/urth-scala-widgets.ipynb
+++ b/notebooks/examples/urth-scala-widgets.ipynb
@@ -35,7 +35,7 @@
    "outputs": [],
    "source": [
     "// modify to IP and Port of this notebook server\n",
-    "%addjar http://192.168.99.100:8888/nbextensions/urth_widgets/urth-widgets.jar"
+    "%addjar http://192.168.99.100:8888/nbexten tsions/urth_widgets/urth-widgets.jar"
    ]
   },
   {
diff --git a/package.json b/package.json
index 4d5a4898..83319573 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,10 @@
     "selenium-standalone": "latest",
     "web-component-tester": "~3.4"
   },
+  "dependencies": {
+    "amdefine": "^1.0.0",
+    "jquery": "^2.1.4"
+  },
   "config": {},
   "scripts": {
     "bower": "bower",