Callstack Engineers

@callstackio

We ship cross-platform products at AI speed. Training LLMs (Apex). React Native Core Contributors & React Foundation Members. Bringing you @AgentConf.

Wroclaw, Poland

callstack.com

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Callstack Engineers
@callstackio
Sep 1
🎉 @margelo_com Joins Callstack to Advance High-Performance React Native Engineering Vienna, Austria. 1 September 2026. Callstack, a leader in React Native and cross-platform development, today announced that Margelo, the Vienna-based high-end engineering company behind Nitro
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Callstack Engineers
@callstackio
6h
Shipped with Apex
Michał Pierzchała
@thymikee
6h
Introducing: 𝚜𝚌𝚛𝚎𝚎𝚗𝚜𝚑𝚘𝚝 --𝚌𝚛𝚘𝚙-𝚘𝚗. Agents can capture just the component they’re verifying, not the whole screen. Isolated visual checks. Fewer tokens. Clearer diffs. Coming to @agent_device 0.21 🔜
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Callstack Engineers
@callstackio
12h
Background removal and transcription run in the browser. @nicodotdev joins @grabbou to cover Transformers.js today, device limits, offline use, and which parts of an agent workflow can already run locally. 📺 YouTube premiere: youtu.be/elAVSra9KCY 📆 Sept 7 at 2PM CEST
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Callstack Engineers
@callstackio
Sep 3
React Native can unify the codebase without unifying how mobile work is owned and delivered. Our new field guide, React Native at Scale 2026, combines 10 years of our experience with perspectives from 12 organizations. Use it to review your setup: clstk.com/4qUkWJS
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Callstack Engineers
@callstackio
Sep 3
We’ve been really happy to see the response to @margelo_com joining Callstack. 🥳 Over the past few days, we’ve read many thoughtful messages and reactions from across the React Native community. Thank you for all the kind words.
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