Meta open-source React design system Astryx

Meta has officially open-sourced its React design system, Astryx, currently in Beta. Built on React and StyleX, the system has undergone eight years of internal refinement and supports over 13,000 applications, including Facebook and Instagram. It offers 150+ accessible components, branded themes, dark mode, ready-to-use templates, and a CLI toolkit. Developers don't need to build additional plugins; they can simply import pre-compiled CSS to use it.