SINGULAR is a Computer Algebra System (CAS) for polynomial computations with emphasis on the special needs of commutative algebra, algebraic geometry, and singularity theory.

Tuxblocs helps students in K-12 schools to understand the positional numeration system.

OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++ designed to make it easier and more intuitive for developers to produce applications utilising hardware-accelerated 3D graphics. The class library abstracts all the details of using the underlying system libraries like Direct3D and OpenGL and provides an interface based on world objects and other intuitive classes.

Provides functionalities for creating and transforming ULIDs (Universally Unique Lexicographically Sortable Identifiers). Utilises a Cython-based implementation for optimal performance, with a fallback to pure Python if Cython is unavailable.

Roc is a network transport, highly specialized for the real-time streaming use case. The user writes the stream to the one end and reads it from another end, and Roc deals with all the complexity of the task of delivering data in time and with no loss. Encoding, decoding, adjusting rates, restoring losses - all these are performed transparently under the hood.

Like "ls", but for images.