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You can create an account for yourself by registering on the confluence page (https://opensource.ncsa.illinois.edu/confluence/signup.action). At this point at NCSA. Once the account is approved, you will have basic access rights, you can add bug reports to most projects, clone repositories. Once you have an account you can use that to contact the admins of a project you are interested in joining on the project page (https://opensource.ncsa.illinois.edu/projects).
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