First of all, rename the file config/database.yml.sample
mv config/database.yml.sample config/database.yml
and then, update it with your database connection parameters.
You will need to create a postgis template database. Here explain how to do it.
After that, you can proceed with the rest of the installation steps:
You need imagemagick ruby -e "$(curl -fsSL https://gist.github.com/raw/323731/install_homebrew.rb)"
brew install imagemagick
And the database:
This will take a while, since 1.4 million records must be inserted in the database.
Running the app!
To run the application in your development machine, just start the server
and load the app in your browser:
Now, time to hack and send some pull requests!