cloudwu/skynet ? reverse-engineered prompt

Build me a lightweight multiplayer game server framework in C with Lua support, based on the actor model, so different parts of the server can run as separate services and talk to each other cleanly.

I want it to be easy to build on Linux and macOS, with a simple Makefile based setup, and I want a small working example I can run right away, like a server node and a tiny client that connects and sends a message. Please include the core runtime, Lua integration, a few basic example services, and enough documentation so I can understand how to start it and extend it for a game project.

If you need to, look up current build or Lua details online, but keep the result practical and easy to compile. Make sure it feels like a real framework someone could use to prototype online games, not just a toy demo.