This is a sample Power-Up built for the Trello platform and intended to be hosted on Heroku.
Make sure you have Node.js and the Heroku Toolbelt installed.
$ git clone git@github.com:trello/power-up-on-heroku.git # or clone your own fork
$ cd power-up-on-heroku
$ npm install
$ npm start
Your app should now be running on localhost:5000.
Ensure that you have Heroku CLI installed.
$ heroku create
$ git push heroku master
$ heroku open