PETSc is the "Portable Extensible Toolkit for Scientific Computation", a suite of data structures and routines for the scalable (parallel) solution of scientific applications modeled by partial differential equations. It employs the MPI standard for all message-passing communication. Several sample scientific applications, as well as various papers and talks, demonstrate the features of the PETSc libraries.

The JavaScript library Caret.js provides an API to query the caret position in an HTML input field.

KWaylandServier provides a Qt-style Server library wrapper for the Wayland libraries.

This is the GNU Go compiler, which compiles Go on platforms supported by the gcc compiler. It uses the gcc backend to generate optimized code.

Akatab is a TrueType font for the Tifinagh script with smart font capabilities added using state-of-the-art font technologies. This means that complex typographic issues such as the placement of combining marks or the formation of ligatures are handled by the font, provided you are running an application that provides an adequate level of support for one of these smart font technologies.