This looks really useful! I've just started working on a (mostly pedagogical) little project making a chat server/client in C and started reading through Beej's guide to networking which is great for the fundamentals but I was struggling with deciding how I want to structure my larger code in terms of sockets, clients, multiplexing, etc. I may just end up using your library if it fits (after reading through it some more), else take inspiration from it at the very least.