facil.io - Knowledge Base: High-Performance Web Framework is a lightweight web framework for C, designed to simplify the development of web applications and services (RESTful APIs, websocket, SSE, static file).
GLib - Knowledge Base: Data Structures & Algorithms, Operating Systems, Software Engineering is a comprehensive resource for C programming.
Valgrind - Knowledge Base: Memory Debugging and Profiling is a powerful tool for memory debugging, leak detection, and profiling in C programs.