Open source Ruby on Rails based Learning Record Store (http://en.wikipedia.org/wiki/Learning_Record_Store, http://tincanapi.com/learning-record-store/) which is compatible with TinCanAPI (http://tincanapi.com/) and Experience API (http://www.adlnet.gov/tla/experience-api).
Please regard this as pre-alpha software. It is NOT complete yet and is not usable!