router.js

Dashboard.Router = Ember.Router.extend({
  root: Ember.Route.extend({
    index: Ember.Route.extend({
      route: '/:username',
      connectOutlets: function(router, context) {
        router.set('userController.content', Dashboard.User.find(context.username));
      },

      index: Ember.Route.extend({
        route: '/',
        connectOutlets: function(router) {
          var username = router.get('userController.login');

          router.get('store').findQuery(Dashboard.Repository, {
            username: username
          });

          // connectOutlet ...
        }
      }),

      repository: Ember.Route.extend({
        route: '/:repository',
        connectOutlets: function(router, context) {
          var username = router.get('userController.login');
          var repoName = context.repository;

          // fetch repo for current user
          var repo = Dashboard.Repository.find('%@/%@'.fmt(username, repoName));
          router.set('repositoryController.content', repo);

          // connectOutlet ...
        }
      })
    })
  })
});