Mike

@grabbou

ceo and founder @callstackio, @reactjs foundation, codex ambassador @openai. i love cars 🏎️

callstack.com

Joined December 2012

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Mike
@grabbou
Sep 1
When Viking became a shareholder in Callstack, I knew we were setting out to deliver an ambitious plan. I wanted to build Callstack into a globally significant technology company. Viking believed in what we had already built and in how far we could go. Today is the next chapter
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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Mike
@grabbou
2h
Time to rerun last chats with this setting
Fernando Rojo
@fernandorojo
4h
there goes my weekend
Mike
@grabbou
9h
Dogfooding own models before going live
Michał Pierzchała
@thymikee
11h
Replying to @thymikee and @agent_device
This feature was researched, ideated, and contributed by @callstackio Apex (with some guidance from Sol because let's be real) Get access here, it's still free for a limited time ↓ callstack.com/blog/introduci…
Mike
@grabbou
Sep 3
We shipped a new guide! React Native at Scale 2026 🚀 Check it out ⬇️
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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Mike
@grabbou
Sep 3
The community said it better than we ever could. Thank you! Now it's time to cook🔥
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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