- Heroku cedar stack. More.
- 100% SSL encrypted with Heroku SSL Endpoint. More.
- All application traffic routed through subdomain-based hostnames. More.
- Multithreading supported by a Redis instance.
- Git version control.
- Sidekiq background processing. Handles multiple jobs concurrently using threads instead of processes for increased efficiency.
- Sinatra based web monitor for Sidekiq workers.
- PostgreSQL object-relational database.
- Carrierwave and Fog cloud storage on Amazon S3 servers.
- Devise user authentication.
- Twitter Bootstrap front-end framework for CSS styling with added SASS functionality.
- RMagick image processing.
- change devise mail options, see railscast