Please hack my C webserver (it's a collaborative whiteboard)

This is basically an invitation to tinker: a small C-based webserver serving a shared HTML5 canvas so you can study or extend the networking and drawing logic instead of hiding it behind Node frameworks. The UI is functional but crude — no polish, no UX niceties — which makes it useful as a learning playground but not as a competitor to mature collaborative whiteboards. If you want to add auth, persistence, or smoother sync logic, the repo looks like a friendly starting point.