To launch the application, run:
$ foreman start
By default the appliaction will launch on http://0.0.0.0:3000/
To set up the DB make sure you run
$ rake db:migrate
$ rake db:seed # will reset the DB
To install OpenCV easily on a mac run the following commands (if you have brew installed)
$ brew update # just to make sure your brew is up to date
$ brew tap homebrew/science
$ brew install opencv
$ brew install mpg123
$ sudo apt-get install mpg123