Marathon is a GUI test tool that allows you to play and record scripts against a Java Swing UI. It's written in Java, and uses Python and Ruby as its scripting language (the emphasis being on an extremely simple, readable syntax that customers/testers/analysts feel comfortable with). Marathon includes a recorder, editor, player, and debugger to simplify working with test scripts.
Mondrian is a project manager and editor for the Ruby language. It has the familiar look and feel of a modern IDE while remaining dedicated to the uniqueness of the Ruby language and its community. It comes with a dynamic object browser, a full-featured project manager, and does runtime error integration amd syntax highlighting.
JumpBox for Redmine is a virtual machine with a pre-installed instance of Redmine, a project management and issue tracking system for software developers. Redmine provides many of the features in Trac plus support for multiple projects, role based access control, time tracking functionality, Gantt charts, a calendar view, and user self-registration. It includes tight integration with Subversion, and the JumpBox includes everything you need.
Cinabox (Continuous Integration in a Box) automates the setup of a Continuous Integration (CI) system by doing The Simplest Thing That Could Possibly Work. It consists of two simple scripts to set up a cruisecontrolrb CI server from scratch on an Ubuntu 8.04 system: one script to bootstrap Ruby, and another script to set up CI.
tuitest is a tool to create and run automated tests of text user interfaces. It is meant as a complement to the widespread use of unit tests, and uses concepts known from GUI testing tools with the difference that it applies them specifically to text- and terminal-based user interfaces. It consists of a recorder that records the interaction with an application under tests and generates a Ruby script that replays the same interaction, optionally with the same timing. Ruby replaying is supported through a native Ruby module.