GitHub Polls - Polls for GitHub issues and readme
Invenio - Invenio is a free, open-source software to run a digital library or document repository on the web.
Octotree - Github on steroids
Greenstone Digital Library - Greenstone is a suite of software tools for building and distributing digital library collections...
Neat.run - Neat puts SaaS notifications in your menu bar. Streamline your code review and ship with ease. Preview, triage, and jump to issues in one click or keystroke.
Koha - Koha is the first free and open source software library automation package (ILS).