The "Grand Unified Toolkit" is a portable, low-level C++ API targeted toward the development of interactive 3D applications. It is based around a comprehensive OpenGL setup API with features like windowed and fullscreen displays, on-the-fly video mode switching, transparent support for 3Dfx standalone cards, and texture and font support. The Toolkit also includes a user input API, access to the system timer, basic 3D math objects, file I/O, and more. Full source code, HTML documentation, and several small sample applications are available.
MailSpammer is a simple mailing list manager for smaller e-mail lists, using procmail and Perl. MailSpammer does not require administrator access, aside from initial setup (creating e-mail aliases), and features subscription, unsubscription, moderation, and archiving. The goal is not to be a majordomo-alike mailing list manager, but instead to provide a lightweight way to handle basic list management tasks.
ZooLib allows one to write a single set of C++ sources which can be compiled into native executables for Mac OS, Windows, BeOS, or POSIX-compliant systems that use the X Window system (such as Linux). Zoolib provides a GUI toolkit with a uniquely flexible layout system. It also provides a single-file database format, TCP networking, and extensive debugging support. ZooLib applications are multithreaded. ZooLib requires only minimal support from the underlying OS and platform GUI layer, and thus could be ported to a completely new platform without too much difficulty. ZooLib is fully production quality on Windows and MacOS, completely implemented but untested on BeOS, and not yet complete on POSIX. Please note that the sources from the "demo" branch are also required to build ZooLib or to get started writing your own ZooLib applications.