derby model question

app-index.js

var derby = require('derby');
var app = derby.createApp(module);

// import derby components
derby.use(require('derby-ui-boot'));
derby.use(require('../../ui'));


// ROUTES //

// Derby routes can be rendered on the client and the server
var pages = [
  {url: '/', title: 'Home'}
];
function render(name, page) {
  var ctx = {
    pages: pages,
    activeUrl: page.params.url
  }
  page.render(name, ctx)
}

app.get('/', function(page, model) {
  console.log('routes:',model.get())
  render('home', page)
})


// CONTROLLER FUNCTIONS //

app.ready(function(model) {
  console.log(model.get())
})

server-index.js

var http = require('http')
  , path = require('path')
  , express = require('express')
  , gzippo = require('gzippo')
  , derby = require('derby')
  , app = require('../app')
  , serverError = require('./serverError')


// SERVER CONFIGURATION //

var expressApp = express()
  , server = module.exports = http.createServer(expressApp)

derby.use(derby.logPlugin)
var store = derby.createStore({listen: server})
var m = store.createModel();
m.set('tz',{
  data:{
    test: 'aa',
    test2: 'bb'
  }
})
console.log('x',m.get())
var ONE_YEAR = 1000 * 60 * 60 * 24 * 365
  , root = path.dirname(path.dirname(__dirname))
  , publicPath = path.join(root, 'public')

expressApp
  .use(express.favicon())
  // Gzip static files and serve from memory
  .use(gzippo.staticGzip(publicPath, {maxAge: ONE_YEAR}))
  // Gzip dynamically rendered content
  .use(express.compress())

  // Uncomment to add form data parsing support
  // .use(express.bodyParser())
  // .use(express.methodOverride())

  // Uncomment and supply secret to add Derby session handling
  // Derby session middleware creates req.model and subscribes to _session
  // .use(express.cookieParser())
  // .use(store.sessionMiddleware({
  //   secret: process.env.SESSION_SECRET || 'YOUR SECRET HERE'
  // , cookie: {maxAge: ONE_YEAR}
  // }))

  // Adds req.getModel method
  .use(store.modelMiddleware())
  // Creates an express middleware from the app's routes
  .use(app.router())
  .use(expressApp.router)
  .use(serverError(root))


// SERVER ONLY ROUTES //

expressApp.all('*', function(req) {
  throw '404: ' + req.url
})

question:

https://groups.google.com/forum/?fromgroups#!topic/derbyjs/fLagAZqdUUo%5B1-25%5D

1. server/index.js console.log('x',m.get()) trigger 2 times
2. app/index.js the model is empty.