BitNami JRubyStack provides a fast, easy way to develop and deploy Ruby on Rails applications on a Java runtime using JRuby. It includes JRuby, Rails, Java, Tomcat, the GlassFish gem, MySQL, and Subversion. It supports Windows, Linux, and Mac OS X, so you can share the same Rails environment on multiple platforms.
Karma is a Web service provider for tracking "karma" points of users who are distributed across several separate Web applications. It is useful for when sites want to allow community contributions to content, but certain higher types of content should only be able to be submitted by people who have demonstrated the ability to contribute value at lower levels. The vision is to create a generic karma service where a central server instance provides its services to several related Web applications. Those applications are the clients of the karma server instance. They can quickly and securely submit and retrieve karma for their users.
Noosfero is a Web platform for social networks. Besides the regular social network features (such as friends and communities), Noosfero offers a full-featured CMS, making every user or community profile a complete Web site with several types of content (including text, image gallery, and file uploads), RSS feeds, agenda, the possibility to set custom themes, and other features. It is also possible to run several independent social networks within the same Noosfero installation.
Refinery is a Ruby on Rails content management system for small business sites where the client needs to be able to update their Web site themselves without being bombarded with anything too complicated. It is truly aimed at the end user, making it easy for them to pick up and make changes themselves.
render_inheritable is a Rails 3 plugin that allows one to inherit or override single templates for controller hierarchies. With this gem, a template is searched in the current controller's view folder (as usual). If it is not found there, the template with the same name in the view folder of the superclass controller is used. Finally, views and partials remain DRY.
BitNami Gitorious Stack Native Installer is an easy-to-install distribution of the Gitorious application. It includes pre-configured, ready-to-run versions of Apache and MySQL so users can get a Gitorious installation up and running in minutes after answering a few questions. Windows, Linux, Linux 64, and Mac OS X operating systems are supported. Gitorious provides an Open Source infrastructure for hosting projects which use Git. It also supports projects with wikis, a Web interface for merge requests and code reviews, and activity timelines for projects and developers.