Zoomable Calendar Grids, On-Device Gemini Nano, and a Gothic Theme for Your Company’s 13,000 Internal Apps You’re reading The React Native Rewind #48. Meta’s Magic Potion Goes Public Meta just …

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Issue #48 of The React Native Rewind covers four topics: Meta open-sourcing Astryx, an 8-year-old design system powering 13,000+ internal apps with agent-friendly CLI and MCP server support; Maestro MCP, which lets AI coding agents drive iOS/Android simulators to verify and test features they build; super-calendar, a gesture-driven virtualised calendar library for React Native with pinch-to-zoom and zero re-renders; and @react-native-ai/adk, a new Callstack package wrapping Google's Agent Development Kit to run Gemini Nano on-device on Android via the Vercel AI SDK.