Habitat

Rails 3 plugin that automatically loads heroku config variables into your development environment

Usage

In your Gemfile:

group :development do
  gem 'habitat'
end

To override values from heroku config create a habitat.yml file in config

Sample config/habitat.yml:

TWITTER_KEY: differentkeythanproduction

Fork the project.
Make your feature addition or bug fix.
Add tests for it. This is important so I don’t break it in a future version unintentionally.
Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
Send me a pull request. Bonus points for topic branches.