Lua is not just a lightweight script language.
It is a runtime toolbox capable of building state machines, pipelines, schedulers, entity systems, and even domain-specific languages (DSLs).

This deep dive focuses on production-level techniques heavily used in:

• Game engines (Defold, Love2D, custom C/C++ engines)
• AI scripting
• UI scripting
• Simulation and animation
• Networking and asynchronous flows
• Configuration languages and DSLs

1. Coroutine Pipelines (The Real Power of Lua)

Coroutines allow cooperative multitasking, enabling sequential code that behaves like async flows.