RSD is a PHP development environment. The most powerful part is the RSDEngine - provide it with a SQL database schema and additional options and it will generate a ready-to-run application. Other goodies: versioning, generation of API docs, unit tests.
CVS is the Concurrent Versions System, the dominant open-source network-transparent version control system. This project is designed to first create a GUI wrapper for the BeOS version and then next to integrate it into a complete application.