I made this to help me figure out how to use Google Analytics' event tracking feature.
Assuming you already have Ruby and the Bundler gem installed:
$ export GA_EVENT_DEMO_GA_ACCOUNT=[analytics account #]
$ bundle
$ rackup
Once you have it running locally, you can put it on Heroku:
$ gem install heroku
$ heroku app:create -s cedar
$ heroku config:add GA_EVENT_DEMO_GA_ACCOUNT=[analyitics account #]
$ git push heroku master