This is part of the libosmocore "meta"-library. The libosmocore library contains various utility functions that were originally developed as part of the OpenBSC project, but which are of a more generic nature and thus useful to (at least) other programs that are developed in the sphere of Free Software / Open Source mobile communication.

Python code to convert between geometric transformations.

This library provides logging APIs based on C++-style streams and various helper macros.

MUMPS implements a direct solver for large sparse linear systems, with a particular focus on symmetric positive definite matrices. It can operate on distributed matrices e.g. over a cluster. It has Fortran and C interfaces, and can interface with ordering tools such as Scotch.

GNU Astronomy Utilities (Gnuastro) is a collection of programs (the `gnuastro' package) and librarires (this package along with `libgnuastro-dev') for astronomical data analysis and manipulation. The programs can be run on the command-line for efficient and easy usage and the libraries can be used within C and C++ programs.

pmbootstrap is the central tool used for development and installation of postmarketOS. It works using Alpine chroots to avoid installing software on the host's machine.