---
title: "Live Dev Session: Unistyles 3.0, SSR With Hermes & Expo SDK 52"
description: "From inside shadows to decentralized music players, catch the latest React Native takes in Week 28 live dev session with Łukasz, Kewin, and Mike."
url: https://www.callstack.com/events/live-dev-session-week-28-react-react-native-rundown
updated: 2026-10-24T08:39:20.417Z
---

# Live Dev Session: Unistyles 3.0, SSR With Hermes & Expo SDK 52

From inside shadows to decentralized music players, catch the latest React Native takes in Week 28 live dev session with Łukasz, Kewin, and Mike.

_Livestream · 7/10/2025, 5PM [CEST] · Online · Recording: 03:10:23 · Category: Community_

Organizer: Callstack

Speakers: Łukasz Chludziński (Engineering Manager @ Callstack), Kewin Wereszczyński (Software Engineer @ Callstack), Mike Grabowski (CEO & Founder @ Callstack)

[Watch the recording](https://www.youtube.com/watch?v=RBNWqvYUkIg)

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.