This is the GNU Objective-C compiler, which compiles Objective-C on platforms supported by the gcc compiler.

QGIS is a Geographic Information System (GIS) which manages, analyzes and display databases of geographic information.

Tkrzw is a C++ library implementing DBM (Database Manager) with various algorithms. It features high degrees of performance, concurrency, scalability and durability.

This is the GNU C++ compiler, a fairly portable optimizing compiler for C++.

The Symfony Nexmo Notifier Bridge provides Nexmo integration for Symfony Notifier.

ZArchive is yet another file archive format. Think of zip, tar, 7z, etc. but with the requirement of allowing random-access reads and supporting Zstandard compression.