Astryx

agent-ready design system built with StyleX

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Screenshots

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Hunter's comment

Astryx is a fully customizable, open-source design system built by Meta, powering over 13,000 internal apps. Engineered for both human developers and AI coding agents, it features 150+ accessible React components styled with StyleX (with no build plugins required). What sets it apart is its "open-internals" architecture—allowing you to swizzle and extract full component source code—and strict API predictability that ensures LLMs and humans can build seamlessly together.

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Link

https://github.com/facebook/astryx

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