https://github.com/libuv/libuv

Cross platform asynchronous I/O.

sdl

Low level cross-platform access to audio, keyboard, mouse, joystick, and graphics.

raylib

A simple and easy-to-use library to enjoy videogames programming.

https://github.com/google/gumbo-parser

C99 HTML5 parsing library.

https://sqlite.org/index.html

SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured, SQL database engine.

https://curl.se/

Library for transferring data with URLs