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What I love most about Callstack is the constant opportunity to grow.

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AI

Artificial intelligence is changing how we build and maintain React and React Native apps—from code generation to testing. Find out how AI-powered tools improve your development process and help create smarter cross-platform experiences.

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Who Left the Agents Running? React Native Software Factories

Join Kewin Wereszczyński and Szymon Chmal to explore what can go wrong in a React Native software factory overnight and the controls that keep agents on track.

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When Coding Gets Faster, What Breaks Next?

Matt Hargett explains how AI moves bottlenecks across testing, deployment, infrastructure, support, and the rest of software delivery.

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What Happens When AI Agents Have No Token Budget? OpenAI's Carl Ross on Scale

OpenAI's Carl Ross discusses scaling AI coding agents, competing code changes, continuous cleanup, and the limits of running agents without a token budget.

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State Machines for AI Agents With David Khourshid

David Khourshid explains state machines for AI agents, human approval steps, tracing, and handling invalid model outputs in agent workflows.

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Inside Cursor, Colossus, and Grok Bot With Nick Miller

Nick Miller explains Cursor's move to SpaceXAI, how Colossus changed model training, and the browser experience behind Grok Bot.

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Can Engineers Trust AI Agent Fleets? Nishant Gupta on Scale and Reliability

Nishant Gupta of Meta explains AI agent fleets, reusable control planes, and why verifying outcomes still matters as teams delegate more work.

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AI Coding Agents and Hermes With Tzvetan Mikov

Tzvetan Mikov discusses AI coding agents, context switching, low-level engine optimization, reviewing specs and tests, and his plans for Hermes X.

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How to Maximize AI SDLC? Measure the Outer Business Loop, Not the Inner Developer Loop

Connect AI-assisted development to measurable business outcomes. Matt Hargett shares a checklist for assessing user exposure, results, and delivery costs.

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Building Reliable AI Figma-to-Code Loops

Build an AI Figma-to-code workflow that uses your design system and checks its output. Learn how component mappings, import checks, and visual feedback work.

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The React Native Software Factory

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Automating Mobile QA with Cloud Agents

Michał Pierzchała shows how cloud-based QA agents can test real iOS and Android user flows and bring screenshots, recordings, and logs into pull requests.

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Introducing Mobile Dev: full mobile dev tooling right in your Codex app

Build mobile apps in Codex with live iOS and Android previews, annotations, native and JavaScript logs, and performance profiling in one plugin.

...

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Integrating AI into your React Native workflow?

We help teams leverage AI to accelerate development and deliver smarter user experiences.

2×Estimated AI-assisted delivery speedupJetBrains
25Working days from kickoff to mergeJetBrains
1Plugin across three frameworksJetBrains
10min from code change to mini-app releaseTeamworks
multi-dailystaging deployments instead of weekly releasesTeamworks
7mini-apps supported in one modular mobile platformTeamworks
2CI/CD lanes for mini-app and host-app distributionTeamworks
2xgrowth in mobile user base during the migration periodAutoZone
4.2 -> 4.7app rating increase after migrating to React NativeAutoZone
0missed releases during the transition to React NativeAutoZone
33%fewer re-renders across most featuresQuestrade
18%faster time-to-interactiveQuestrade
-28%CPU usage in critical trading flowsQuestrade
78%bundle size reduction (from 50 MB to 11 MB)Dream11
30%faster component mount time after render optimizationDream11
60%faster initial load time enabled by switching to HermesDream11
5xfaster message sending timeExpensify
4.5xfaster search screen loading timeExpensify
#1SEO rank, recovering from 3-9AutoZone
260kBless in blocking JS payloadAutoZone
2–5xfaster feedback loopAutoZone
2.8xincrease in knowledge over 8 weeks (25% → 71% assessment scores)Hello Fresh
15developers trained across web and native backgroundsHello Fresh
86%of devs self-rated their knowledge as 3/5 or higher after training (up from 0%)Hello Fresh
130%increase in users post-upgrade7cups
63%adoption rate; majority of attendees registered in the appReact Universe App
67%of attendees connected through QR badge sharingReact Universe App
45%created personalized badges to showcase identity and goalsReact Universe App
49%of attendees onboarded before day one, arriving ready to networkReact Universe App

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