Game of Trees (Got) is a version control system which prioritizes ease of use and simplicity over flexibility. Got uses Git repositories to store versioned data. Git can be used for any functionality which has not yet been implemented in Got. It will always remain possible to work with both Got and Git on the same repository.

The libticonv is a library providing support for operations on Texas Instruments calculators charsets. All charsets for all calculators are supported; the library is also able to convert from/to UTF-8/UTF-16.

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.

USGS is a Python module for interfacing with the US Geological Survey's API. It provides submodules to interact with various endpoints, and command line utilities, helpful for building out large pipelines.

LD_PRELOADing this library enables one to log calls to several network functions.

This is the GNU Modula-2 standard library that comes with the gm2 compiler.