LibVNCServer/LibVNCClient are cross-platform C libraries
OpenCore bootloader
zlib replacement with optimizations for "next generation" systems
Hobby operating system, bootloader, kernel, drivers, C library
A simple and easy-to-use library to enjoy videogames programming
Simple Directmedia Layer
Client library for using AWS IoT Jobs service on embedded devices
Device OS (Firmware) for particle devices
Client library for using AWS IoT Fleet Provisioning service
A cross-platform (C99/C++11) process library
Client library for using AWS IoT Defender service on embedded devices
Simple DirectMedia Layer
A C library for asynchronous DNS requests
Improved Quake III Arena engine
A C library for reading, creating, and modifying zip archives.
the SSH library
Google Toolbox for Mac
Cross-platform C++ libraries for building network applications
Cross-platform SDK for creating and modifying PDF documents
Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, MP3
nsync is a C library that exports various synchronization primitives
Lua bindings for POSIX APIs
An open source E-ink smartwatch
Cross-platform asynchronous I/O
Lightweight generic ring buffer manager library