Postgres Pro is a PostgreSQL fork developed by Postgres Professional company.
Each new Postgres Pro version is an actual PostgreSQL version with some patches commited to community PostgreSQL, and Postgres Professional extensions and patches. In most cases, they are published at commitfest.
A free and open source content-management system and framework written in PHP and using relational database management system as a storage.
A flexible project management web application.
A self hosted Web publishing platform on Rails
Rails eCommerce System, fork of Spree