For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

OBS Studio - Free and open source software for live streaming and screen recording

Git Source Code Mirror - This is a publish-only repository but pull requests can be turned into patches to the mailing list via GitGitGadget (https://gitgitgadget.github.io/). Please follow Documen…

tmux source code

Command-line JSON processor

A code-searching tool similar to ack, but faster.

HandBrake's development repository

Open-source vector similarity search for Postgres

John the Ripper jumbo - advanced offline password cracker, which supports hundreds of hash and cipher types, and runs on many operating systems, CPUs, GPUs, and even some FPGAs

hydra

The pattern matching swiss knife

Disque is a distributed message broker

Beanstalk is a simple, fast work queue.

Minimalistic C client for Redis >= 1.2

Nokogiri (鋸) makes it easy and painless to work with XML and HTML from Ruby.

The arguably fastest GPIO Library for the Raspberry Pi

A C library for asynchronous DNS requests

Google Authenticator PAM module

File system based on the SSH File Transfer Protocol

NES emulator in <5000 bytes of C

A barcode encoding library supporting over 50 symbologies including Code 128, Data Matrix, USPS OneCode, EAN-128, UPC/EAN, ITF, QR Code, Code 16k, PDF417, MicroPDF417, LOGMARS, Maxicode, GS1 DataBa…

Python wrapper for hiredis

A Python wrapper around the libmemcached interface from TangentOrg.

EditorConfig core library written in C (for use by plugins supporting EditorConfig parsing)

TinTin++, aka tt++, is an extensible console MUD client.

Open Source Windows MUD game client

Microwave controlled via Raspberry Pi

tbaMUD is the continued development of the codebase formerly known as CircleMUD.

Python wrapped version of Gordon's Arduino-like WiringPi for the Raspberry Pi

Linux kernel for HTC One