Gitkeeper for Rails 4.0.0

Create a brand new rails app

rails new host_app -T -O -B

Include the engine in your app

cd host_app

# host_app/Gemfile
gem 'gitkeeper'
bundle install

Mount the engine

# host_app/config/routes.rb
HostApp::Application.routes.draw do
  mount Gitkeeper::Engine => "/auth"
end

Run the server

rails s

Visit

http://localhost:3000/auth/github/

This project rocks and uses MIT-LICENSE.