Uploaded July 2025 | Updated September 2026, 13 hours ago

---

Live Dev Session: Week 28 was part tech update, part dev hangout, and all React Native. Łukasz, Kewin, and Mike dove into the latest newsletter, experimenting live with the newest features and tossing in community banter and quirky distractions (including a frog with jewelry and a very suspect dice).

This stream covered:
- React Native Unistyles 3.0 and how it improves styling performance
- Inside shadows on Android (and why they’re a pain)
- Meta using Hermes for server-side rendering (yes, really)
- Expo’s upcoming modal & sheet UI system
- Reactions to Vercel acquiring Nuxt Labs

Plus: an on-the-spot crash course in retrieval-augmented generation (RAG), a peek at Callstack’s upcoming documentation redesign, and lots of developer takes on the state of AI.

See you at other Callstack live streams and events ✨ clstk.com/4eBSsyt
Check out more content from Callstack 📚 clstk.com/3GuRPKm
Follow Callstack on X 🐦 https://x.com/callstackio