libbsl (Basic System Library) is a powerful, easy to use, and fully thread safe C++ template class library for frequently recurring (machine/OS oriented) programming problems. It provides many useful classes like easy to use and fully interchangable I/O devices, ElGamal/AES cryptographic network sockets, dynamic loadable C++ objects which remain dynamic_castable after loading, simple to use and fully copyable thread objects, functors, typelists, a superior state machine implementation, and much more.
PEACE is a set of programs to run Win32 applications on a NetBSD/i386 box. PEACE is a "Win32-compatible package" rather than an "emulator" because instead of using an emulator executable, it extends the kernel and dynamic linker to understand Windows EXE and DLL file and provides a small implementation of the core Windows APIs.
FreePlot is a simple mathematical program that plots 2D functions written in Python. It provides an easy-to-use interface and a powerful graphing mechanism that allows the user to understand what she is doing at all times. FreePlot features out-of-the-box multiplatform support for GNU/Linux, BSD, Win32, and MacOS. Functions can be saved to an image file. An unlimited number of functions can be used on the same cartesian plane. Multiple colors, multiple line styles and marks, and legends are supported.