Astryx is Meta's open-sourced design system (150+ components, 8 years internal development) now in public beta, built on React and StyleX with AI-forward APIs and zero styling lock-in. It's gaining traction on GitHub trending with 5.8k stars and has absorbed Meta's massive internal validation across 13,000+ apps.

One insight: Meta's distribution and engineering credibility drive this launch's velocity, but the design-system market is crowded (MUI, Shadcn, etc.)—a fast follower's edge would require either vertical specialization (e.g., AI-native SaaS, fintech) or dramatically simpler/lighter onboarding, not feature parity.