Log inSign up
Callstack Engineers
4,423 posts
Image
user avatar
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
Joined August 2016
391
Following
16.7K
Followers
RepliesRepliesMediaMedia

New to X?

Sign up now to get your own personalized timeline!

Create account

By signing up, you agree to the Terms of Service and Privacy Policy, including Cookie Use.

Terms·Privacy·Cookies·Accessibility·Ads Info·© 2026 X Corp.
Don't miss what's happening
People on X are the first to know.
Log inSign up
  • Pinned
    user avatar
    Callstack Engineers
    @callstackio
    May 26
    When the way software is built changes, we help companies adopt it. For over a decade, that meant bringing React Native to production across mobile, web, desktop, and TV. Now we are expanding that same mission to AI-native engineering: helping teams ship software with agents,
    Image
    00:00
    24K
  • Callstack Engineers reposted
    user avatar
    Michał Pierzchała
    @thymikee
    Jul 11
    agent-device scores highest in this little benchmark, nice. there’s still so much we can do, we’ll keep on polishing the experience
    user avatar
    Gabriel Moncha
    @gabimoncha
    Jul 11
    Replying to @gabimoncha
    gpt-5.6-sol high tried out the following: - argent by @swmansion - @agent_device by @callstackio - npx serve-sim by @Baconbrix - and the built in Build iOS apps action here is Sol's bench report with pros and cons
    Image
    3.4K
  • user avatar
    Callstack Engineers
    @callstackio
    Jul 10
    Native React Native debugging gets much easier once you ask where the work runs. Sync Turbo Module calls can hit the JS thread. Async calls move to the Turbo Modules thread. Fabric view updates stay on the main thread. That context saves time.
    Image
    1.1K
    user avatar
    Callstack Engineers
    @callstackio
    Jul 10
    Grab your copy now:
    Image
    Improve Your React Native App Performance With a Few Tricks | Callstack
    From callstack.com
    428
  • Callstack Engineers reposted
    user avatar
    Michał Pierzchała
    @thymikee
    Jul 9
    Loop engineering is not magic. With a verification step utilizing screenshot diffs you can improve @figma MCP design-to-code conversion from ~70-80% → 98% in one shot. Read the full story on how @callstackio did it for one of their clients: callstack.com/case-studies/e…
    Image
    3.9K
  • user avatar
    Callstack Engineers
    @callstackio
    Jul 9
    iOS packaging time was burning close to half an hour on every Brownfield build. We cut that by up to 39% by using React Native prebuilts in the packaging flow in @callstack/react-native-brownfield 3.10. Less waiting in CI. Faster iteration on hybrid apps. Read the article 👇
    Image
    1.1K
    user avatar
    Callstack Engineers
    @callstackio
    Jul 9
    Read the article 👇
    Image
    How we made Hybrid iOS apps compile 39% faster with React Native Brownfield
    From callstack.com
    333
  • user avatar
    Callstack Engineers
    @callstackio
    Jul 9
    In the last interview in this series, @lukebfarrell talks with @plahteenlahti from @RevenueCat about how AI is starting to change monetization tooling. They get into AI-generated paywalls, MCP, experiment suggestions inside the dashboard, and what is coming next for onboarding
    Image
    00:00
    1K
  • Callstack Engineers reposted
    user avatar
    Artur Morys-Magiera
    @artus9033
    Jul 3
    Gemini Nano in React Native, fully locally? Now it's possible with React Native AI wrapper for ADK. Why use it? It's like Apple's Foundation Models for Android: performant, system-provisioned via AI Core & does not bloat device memory. Try it out now ⬇️ npmjs.com/package/@react…
    Image
    00:00
    9K
  • user avatar
    Callstack Engineers
    @callstackio
    Jul 8
    Some React Native animations can take a lighter path. New React Universe On Air is live: @lukasz_app talks with @janicduplessis from @appandflow about React Native Ease, Core Animation on iOS, where Reanimated still wins, and why doing less work can be a real performance
    Image
    00:00
    3K
    user avatar
    Callstack Engineers
    @callstackio
    Jul 8
    Watch the full episode of React Universe On Air here 👇
    Image
    React Native Ease: Platform-Native Animations Without the Extra Work
    From callstack.com
    275
  • user avatar
    Callstack Engineers
    @callstackio
    Jul 8
    Review capacity isn't scaling with PR volume for your team? Join our webinar, where @thymikee and @xeonbloomfield will show what to add before merge when code review and E2E are not enough. Register below for a webinar on Jul 21 ⬇️
    Image
    659
    user avatar
    Callstack Engineers
    @callstackio
    Jul 8
    Register here ➡️
    Image
    Behavior Review for AI-Native Delivery | Callstack
    From callstack.com
    309
  • Callstack Engineers reposted
    user avatar
    Agent Conf | Sept 17-18, 2026 | Warsaw
    @AgentConf
    Jul 8
    15+ years across DevOps, web, and mobile. At @bookingcom, Huang Minghe (@_metrue) works on GraphQL Federation and the Agent Skills ecosystem. Now he’s joining Agent Conf in Warsaw as a speaker. He’ll talk about autonomous migration inside a 40-million-line legacy codebase.
    Image
    00:00
    628
  • user avatar
    Callstack Engineers
    @callstackio
    Jul 7
    Dubai, we’re bringing the OpenAI Codex Community Meetup to you. Join us on Tuesday, July 14 for an evening focused on Codex, OpenAI’s coding agent for teams that want to build and ship faster. Save your spot 👇 Link below
    Image
    1.3K
    user avatar
    Callstack Engineers
    @callstackio
    Jul 7
    Save your spot here:
    Image
    OpenAI Build Week Community Meetup - Dubai · Luma
    From luma.com
    335
  • Callstack Engineers reposted
    user avatar
    Agent Conf | Sept 17-18, 2026 | Warsaw
    @AgentConf
    Jul 7
    Piotr Karwatka (@piotrkarwatka) is CTO at Open Mercato. He has spent 26 years in software development, founded and exited Divante and Callstack, and now builds Open Mercato. At Agent Conf, he’ll speak about agentic coding at scale. Get your ticket: agent.sh/tickets
    Image
    00:00
    621
  • user avatar
    Callstack Engineers
    @callstackio
    Jul 7
    We’re introducing Sniffler, a tool for JS and TS teams with large E2E suites. It takes changed files, traces import/export relationships across the codebase, and identifies the E2E tests those changes can affect. The goal is simple: stop defaulting to full-suite runs when the
    Image
    8.3K
    user avatar
    Callstack Engineers
    @callstackio
    Jul 7
    Read the article 👉
    Image
    Introducing Sniffler: Run only the E2E tests your changes can affect
    From callstack.com
    465
  • Callstack Engineers reposted
    user avatar
    Agent Conf | Sept 17-18, 2026 | Warsaw
    @AgentConf
    Jul 7
    George Nikolaropoulos (@gnikolaropoulos) is CTO at Natech, where he works on engineering teams and products in banking. His work focuses on using agentic engineering to speed up software delivery in regulated environments. Now he’s joining Agent Conf in Warsaw as a speaker.
    Image
    00:00
    547
Advertisement
Advertisement