Agent Conf 2026 is coming… and the first speakers are in🔥
👉 Kent C. Dodds - full-time educator helping devs build quality software (JS, React, testing & dev skills) 📚⚙️
👉Levan Kvirkvelia - scaled a product to 2M users, now co-founding Rork 🚀
👉 Tejas Kumar - 20+ years in web, from Spotify to Vercel to Xata, speaking worldwide since 2012 🌍💻
👉 Nader Dabit - 10+ years across cloud, web, AI, blockchain & mobile; ex-AWS, now Cognition ☁️🤖
👉 Kitze - build, ship, learn, repeat. He helping devs move fast without overthinking ⚡🏗️
👉 David Mokos - YC alum, AI agent builder. Created SteerCode (acquired by Expo), now building agentic products at Expo 🧠📱
This is just the beginning 👀
You don’t want to miss this.
Tickets in bio 🎟️
#agentconf
Agent Conf is built for engineers working at the edge of agentic development.
📍 17–18 September 2026 | Warsaw
Two days of conversations on designing, debugging, and shipping autonomous systems.
Be part of what’s next 👇
Link in bio!
Yesterday we hosted the OpenAI Codex Community Meetup, and what a great evening it was! 🚀
An amazing mix of knowledge sharing, insightful discussions, and exchanging experiences with all of you from the community. Thanks to everyone who joined us and helped create such a great atmosphere. 💜
See you at the next events!
That’s how it was yesterday at the Callstack x Vercel AI SDK Meetup! 🔥💜
Keeping the energy going, see you today at the OpenAI Codex Community Meetup 🚀
#AI #AISDK #openai #callstack #vercel #aicommunity #meetup #aimeetup
If you already build with React Native, VR isn’t starting over.
On Meta Horizon OS, React Native runs as a 2D experience in a spatial interface.
This video explains the overlap, and the guide shows how to ship 👉 /metaquest
React Native styles ≠ SwiftUI modifiers.
Get the order wrong in Swift, and your padding suddenly becomes a margin. 🤯
We built **Voltra** so you can create iOS Live Activities using *only* React Native. It handles the translation logic and the correct order automatically.
Write JSX. Ship native. No Swift required. ⚡️
v/
200+ people. React Universe evening in Berlin. 🤯
Together with Zalando @insidezalando , we co-hosted an amazing React Universe Meetup packed with insights, great energy, and even better conversations.
Big shout-out to our Artur for bringing the 🔥 with his session on on-device LLMs 👏
Thanks to everyone who joined us, connected, and made it such a great evening. Berlin, you were awesome. 💙
Your React Native app… but on your face 🕶️ On Meta Quest, React Native apps run as 2D windows inside VR. Same JS, same Expo, same Metro.
Grab the full *React Native Developer’s Guide to Horizon OS* to see how to get started and what really changes in VR ⬆️
Testing native modules is like verifying coffee pods.
☕ The slow way: Brewing the whole pot (building a full UI)
🤷 The risky way: Just reading the label (mocking the bridge)
🔎 The Harness way: Checking the grounds directly (running JS tests in a real native environment)
Verify the actual flavor with Harness.
🎄May this holiday season slow things down and fill your days with warmth, laughter, and genuine joy.
Wishing you moments that feel close, meaningful, and full of holiday magic 🤍
Looking back at our EOY Party ✨
We laughed, danced, decorated gingerbread, and soaked in all the good vibes. Santa 🎅 spoiled us, @brass.federacja 🎺 blew us away, and the stories and chats made it feel like home. 🥹
Huge thank you to all Callstackers for being there, for the incredible work you do, and for the heart and energy you brought into this year 🤍
We’re lucky to have you.
Callstack Team • Callstack Party • Christmas Party • Home Alone Party • Party • EOY Party
@workgroupevents 🎥
There’s nothing better than slowing down together while decorating the tree 🎄, sharing waffles 🧇, and sipping cocoa 🍫🥛
Cozy season at Callstack is officially here ✨🎄
