PyZipper is a Python library for working with ZIP files in an efficient and user-friendly way. It provides a high-level interface for creating, reading, writing and extracting ZIP files. Additionally, it supports advanced functionalities such as AES encryption and LZMA updates.

DBD::Cassandra is a Perl5 Database Interface driver for Cassandra, using the CQL3 query language.

The POCO C++ Libraries are a collection of open source C++ class libraries that simplify and accelerate the development of network-centric, portable applications in C++. The libraries integrate perfectly with the C++ Standard Library and fill many of the functional gaps left open by it.

The ament build system is the most common way to build packages for ROS 2. This package provides the Python 3 module that adds xmllint linter support to ament.

Poppler is a PDF rendering library based on Xpdf PDF viewer.

Paulo Queiroz's collection of useful functions and reusable widgets.