This is a Rails 4.2.1 app. Tested with Ruby 2.2.0.
It's a demo to test what implementing a Rails app might look like if we used the DCI pattern. In this app, we use the Surrounded gem for this.
You can log in (there's no password, just give a name). You can create books written in Markdown. You can then also purchase books others have written.
After you clone the app, install the gems and then set up the database:
bundle install --path=.bundle bundle exec rake db:create bundle exec rake db:migrate
You can deploy to Heroku easily.
heroku apps:create your-marketdown-instance git push && git push heroku heroku open --app your-marketdown-instance