Yes, sort of. We evaluated the options of sticking with their commercial CMS or switching to a famous open source CMS which we're very familiar with, but we estimated that it would be cheaper to build the site they wanted from scratch in Django. When we'd finished it felt like a lot of the work was reusable, and the RCA kindly agreed to let us open source the project. We've spent the last few weeks extracting it into a standalone package, but there are definitely still some rough edges: documentation, obviously; more tests; i18n.