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.
MoleSvn is a SubVersion (svn) client frontend for the BeOS/Zeta operating system, implemented as a Tracker extension (like TortoiseSvn for Windows operating system). It incorporates a diff viewer, to easily view and resolve conflicts.
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.