ZBar is a library for scanning and decoding bar codes from various sources such as video streams, image files or raw intensity sensors. It supports EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 39, Interleaved 2 of 5 and QR Code.

PyTorch is a Python package that provides two high-level features:

The *repopush* tool is yet another program that helps with copying the various package files and repository metadata from one OS package repository to another, taking care to copy and remove files in such a way as to never have the remote repository present an inconsistent view. This is done by first copying the new package files, then copying the new metadata files, then removing the outdated metadata files, and only then removing the outdated package files.

Igbinary is a drop in replacement for the standard PHP serializer. Instead of time and space consuming textual representation, igbinary stores PHP data structures in a compact binary form. Savings are significant when using memcached or similar memory based storages for serialized data.

The nvidia-settings utility is a tool for configuring the NVIDIA Linux graphics driver. It operates by communicating with the NVIDIA X driver, querying and updating state as appropriate. This communication is done with the NV-CONTROL X extension.

OAuth is an authorization protocol built on top of HTTP which allows applications to securely access data without having to store usernames and passwords.