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Welcome to Luma

Luma is a typed scripting language designed for simplicity, safety, and expressiveness. It combines the ease of scripting languages with the reliability of strong static typing.

Why Luma?​

Luma is built on the following core principles:

  • Everything is a value — Functions, types, and modules are first-class citizens, enabling functional programming patterns
  • Explicit over implicit — No hidden conversions or magical behavior; you always know what your code does
  • Safety without ceremony — Strong static type inference reduces boilerplate while maintaining comprehensive safety
  • Errors as values — No exceptions; all failures are explicit Result types for predictable error handling
  • Async-first design — Native async/await with Promise-based concurrency built into the language
  • Modern tooling — URL-based module system for seamless dependency management
  • Minimal core — The language core is intentionally lean; rich functionality lives in the standard library

Quick Example​

let greet = fn(name: String): String do
  "Hello, ${name}!"
end

print(greet("World"))  -- Output: Hello, World!

Development Status​

Luma is currently in active development, expect things to be broken and changing. Until version 1.0.0:

  • The standard library is incomplete and may change frequently
  • The compiler and tooling are under heavy development
  • The semver spec is not followed properly

Getting Started​

Ready to learn Luma? Here's how you can get install it on your system:

We will support package managers once luma reaches version 1.0.0.

Windows​

Run this command in your terminal:

powershell -c "irm https://raw.githubusercontent.com/tayadev/luma/refs/heads/main/scripts/install.ps1 | iex"

Linux and macOS​

Run this command in your terminal:

curl -fsSL https://raw.githubusercontent.com/tayadev/luma/refs/heads/main/scripts/install.sh | sh

Language Specification​

The full language specification is available in the Luma Language Specification document.