Meta open-sources Astryx, the design system powering 13,000+ internal apps

abhishek__AI · x · 2026-11-10

Meta has fully open-sourced Astryx, the massive internal design system that powers 13,000+ apps and packages 8 years of design engineering.

Highlights: AI-agent-ready tooling, 7 customizable themes, built on React 19+ and StyleX, 150+ accessible components—100% open source under MIT.

Related event: Meta Open-Sources Astryx, Its AI Agent-Friendly Design System(4 posts)→

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