Introduction

Rux is a fast, compiled, strongly typed, and multi-paradigm programming language designed for clarity, safety, and performance. It combines expressive high-level constructs with predictable low-level control, so the same language scales from command-line tools and libraries to applications and services.

Rux is in early development. The work happens in the open across several GitHub repositories — compiler, website and documentation, package manager, and code-editor support — all released under the permissive MIT license. The language is actively evolving and improving with every release.

Design Goals

• Performance — Rux compiles to native machine code with no hidden runtime overhead.
• Safety — A strong static type system catches errors at compile time.
• Clarity — Syntax is regular and readable; the language avoids implicit surprises.
• Multi-paradigm — Rux supports procedural, object-oriented, and functional styles.
• Ergonomic tooling — A single rux binary handles compilation, packaging, formatting, and more.

These goals rest on a few guiding principles: performance matters, developer experience matters, readable code scales, tooling should be first-class, and simplicity beats unnecessary complexity.

Hello, World

import Io::Print;

func Main() -> int {
    Print("Hello, World!");
    return 0;
}

Main is the entry point of every executable, and import brings Print from the standard library's Std::Io module into scope.

Where to Go Next

• New to Rux? Follow the Get Started guide or try it in the browser on the Playground — nothing to install.
• Looking something up? This reference is organized bottom-up: lexical structure, primitive types, variables and statements, then functions, user-defined types, and modules.
• Shipping a package? Manifests, dependencies, and publishing live in Packaging.
• Calling native code? See the Foreign Function Interface and the attributes that control linking and targets.
• Want to contribute? Bug reports, support, feature requests, documentation improvements, and pull requests are all welcome across the project's repositories.