What is Lua? Powerful, fast, lightweight, embeddable scripting language. Lua combines simple procedural syntax with powerful data description constructs based on associative arrays and extensible semantics. Lua is dynamically typed, runs by interpreting bytecode for a register-based virtual machine, and has automatic memory management with incremental garbage collection, making it ideal for configuration, scripting, and rapid prototyping.
Lua is an open source tool with 1.26K GitHub stars and 436 GitHub forks. Here's a link to Lua's open source repository on GitHub.