Introduction

Joule, Joule, self-hosted energy-aware programming language with compile-time energy budgets.

This is the official documentation for Joule. The full source code lives in the private -core mirror; the public release surface is at openIE-dev/joule-lang.

What you'll find here

• Install, get the joulec binary on your machine
• Hello, Joule, first program in 30 seconds
• Tutorial, a 30-minute hands-on guided tour
• Reference, every feature, every flag, every API
• Cookbook, task-oriented recipes
• Design, why Joule exists and how it fits with the rest of openIE-dev

The openIE-dev ecosystem

Joule is one of five public openIE-dev projects. All five share a common substrate (flowG) and energy-metering layer (substrate-energy):

• flow-g, the IR + runtime substrate
• lux-lang, reactive language compiling to flowG
• jmax, math-native language
• joule-lang, energy-budgeted compiled language
• jouledb, energy-metered database

License

Joule binaries, documentation and examples are licensed under MIT OR Apache-2.0 (see COPYRIGHT).