index.html.hbs

{{#selectTag options selected}}
{{/selectTag}}

main.js

var Main = function () {
  this.index = function (req, resp, params) {
    this.respond({
        options: ['a', 'b']
      , selected: 'b'
      }, {
      format: 'html'
    , template: 'app/views/main/index'
    });
  };
};

exports.Main = Main;