code: function (opts, callback) {
          var locale_promise, theme_promise,
              that = this;
  
          opts = opts || {};
  
          this.initUtils();
  
          // Set up the settings datastore
          _kiwi.global.settings = _kiwi.model.DataStore.instance('kiwi.settings');
          _kiwi.global.settings.load();
  
          // Set the window title
          window.document.title = opts.server_settings.client.window_title || 'Kiwi IRC';
  
          locale_promise = new Promise(function (resolve) {
              // In order, find a locale from the users saved settings, the URL, default settings on the server, or auto detect
              var locale = _kiwi.global.settings.get('locale') || opts.locale || opts.server_settings.client.settings.locale || 'magic';
              $.getJSON(opts.base_path + '/assets/locales/' + locale + '.json', function (locale) {
                  if (locale) {
                      that.i18n = new Jed(locale);
                  } else {
                      that.i18n = new Jed();
                  }
                  resolve();
              });
          });
  
          theme_promise = new Promise(function (resolve) {
              var text_theme = opts.server_settings.client.settings.text_theme || 'default';
              $.getJSON(opts.base_path + '/assets/text_themes/' + text_theme + '.json', function(text_theme) {
                  opts.text_theme = text_theme;
                  resolve();
              });
          });
  
  
          Promise.all([locale_promise, theme_promise]).then(function () {
              _kiwi.app = new _kiwi.model.Application(opts);
  
              // Start the client up
              _kiwi.app.initializeInterfaces();
  
              // Event emitter to let plugins interface with parts of kiwi
              _kiwi.global.events  = new PluginInterface();
  
              // Now everything has started up, load the plugin manager for third party plugins
              _kiwi.global.plugins = new _kiwi.model.PluginManager();
  
              callback();
  
          }).then(null, function(err) {
              console.error(err.stack);
          });
      }
docs: Entry point to start the kiwi application