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.
BeOS Rapid Integrated Environment (or BRIE for short) is an IDE for rapid development of BeOS / OBOS / Zeta applications. All code is generated in C/C++ using the BeOS API plus a few extensions.