NCSA has supported a number of significant open source software efforts over its history and continues to do so to this day. At http://opensource.ncsa.illinois.edu you can access and if desired contribute to the current open source projects we are working on.
You can create a new account to all of the systems using the confluence sign-up as new user at the top right. This will give you access to JIRA, STASH as well as access to your personal space in confluence.