From Drupal and Moodle, right through to a Git versioning system and Perl modules on CPAN, we contribute back to over 175 community open source projects. This list is in order of the number of projects contributed to.
A gem that processes Trello cards from Git post-receive hook
This website intends to display koha community usage statistics. Data are collected from installed koha if librarian wants anonymously or not. External references http://wiki.koha-community.org/w/index.php?title=KohaUsageStat_RFC https://github.com/jajm/hea-ws
Hessian web-service protocol for Perl
iRATE radio (http://irate.sourceforge.net)
iRATE radio provides users with a powerful new way to find and download free, legal music online. Users rate tracks based on their tastes. The iRATE server then selects other tracks to send to the user from a database of over 50,000 freely downloadable songs by correlating the user's ratings with other users', and finding people with similar tastes. Unlike streaming audio, iRATE saves the tracks to the user's hard drive. This means that playback is smoother, without the typical problems associated with streaming media, such as high bandwidth usage.
toy language exploring static verifiability
ikiwiki is a wiki compiler. It converts wiki pages into html pages suitable for publishing on a website.
Convert images to OpenSCAD contours
jQuery plugin for doing animated title sequences (eg: like movie credits)
jQuery plugin to make elements of a web page/app draggable by mouse or touch.
A bot for use with AIM, Jabber or MSN to communicate with a Koha server.