Linux kernel source tree

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

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP…

Modern HTTP benchmarking tool

tmux source code

Command-line JSON processor

How to create an OS from scratch

The official NGINX Open Source repository.

A tiling window manager for macOS based on binary space partitioning

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

How to Make a Computer Operating System in C++

libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

The systemd System and Service Manager

Node.js Desktop Automation.

Embed the Power of Lua into NGINX HTTP servers

H2O - the optimized HTTP/1, HTTP/2, HTTP/3 server

A tiling window manager for X11

Disk encryption with strong security based on TrueCrypt

A text editor in less than 1000 LOC with syntax highlight and search.

Screaming-fast Python 3.5+ HTTP toolkit integrated with pipelining HTTP server based on uvloop and picohttpparser.

Disque is a distributed message broker

Simple hotkey daemon for macOS

htop - an interactive process viewer

Free (libre) font editor for Windows, Mac OS X and GNU+Linux

A maintained ctags implementation

xrdp: an open source RDP server

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

Siege is an http load tester and benchmarking utility

Run arbitrary commands when files change