Seattle Railsbridge

Let's fire up the application locally

In your terminal, try this:

$ bundle
$ rails server

Then point your web browser to http://localhost:3000.

See your web app actually running!

bundle installs software your application needs and prepares it to run.
rails server ran your application locally just like heroku is running it on their servers.
This provides a very simple means to see your changes before you commit and push them to heroku.