To start your new Phoenix application you have to:
git push heroku master
or if you are in a dev branch:
git push heroku <dev_branch>:master
- Install dependencies with 
mix deps.get - Start Phoenix router with 
mix phoenix.start 
Now you can visit localhost:4000 from your browser.
- If you choose to change the application's structure, you could manually start the router from your code like this 
Fawkes.Router.start