1. MarleyMinimalist blogging engine without textareas based on Markdown, Ruby, Sinatra and Git push hooks
2. MonittrRuby and web interface for Monit statistics
3. Localized country selectRails plugin for localized "country_select" helper with Rake task for downloading locales from Unicode.org's CLDR
4. RetireA rich Ruby API and DSL for the Elasticsearch search engine
5. PushrDeploy Rails applications automatically by running Capistrano tasks with Git post-commit hooks
9. Chef Hello CloudA demo of a full stack Rails application deployment (1x load balancer, 3x appserver, 1x database, 3x elasticsearch) with Chef Server