OSEM is a *Ruby on Rails* application. We recommend to run OSEM in production with [mod_passenger](https://www.phusionpassenger.com/download/#open_source)
In order to use [openID](http://openid.net/) logins for your OSEM installation you need to register your application with the providers ([Google](https://code.google.com/apis/console#:access), GitHub or [Facebook](https://developers.facebook.com/)) and enter their API keys in `config/secrets.yml` file, changing the existing sample values.
Open a separate terminal and go into the directory where the rails app is present, and type the following to start the delayed_jobs worker for sending email notifications.