We break down what’s new, what’s next, and what’s actually worth your time in the evolving React Native ecosystem. Expect a dose of humour and plenty of memes.
Joined August 2024
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You just need to bump a version in package.json.
Cursor boots an agent.
Forty seconds later you still haven't seen the file.
Legend Code by @jmeistrich is a native macOS editor for opening one file and changing a line, without the agentic UI.
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𝗪𝗵𝗮𝘁'𝘀 𝗶𝗻𝘀𝗶𝗱𝗲
➡️ Any UTF-8 text file from Finder or ⌘O
➡️ Go to line, comments, duplicate/move lines
➡️ Incremental highlighting so big files stay snappy
Catch: early 0.0.1, macOS only, and you may need duti to claim .json/.ts.
Link in comments.
#ReactNative #LegendCode #macOS #DevTools #OpenSource #MobileDev
Legend Code is exactly the sort of small tooling story we write up in The React Native Rewind 👇
Join The React Native Rewind: trnrw.com/YLLZyR
Legend Code: legend.so/code/
My agent said it had added the contact.
It was describing the simulator, not looking at it.
agent-device by Callstack lets coding agents actually open, tap and fill an iOS or Android app, then save evidence.
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𝗪𝗵𝗮𝘁'𝘀 𝘁𝗵𝗲 𝗰𝗮𝘁𝗰𝗵?
You still need a booted simulator or device and a running app. React DevTools / CDP features want a development build, and Expo Go only profiles the host process. It is not a replacement for Xcode breakpoints when you need to step native code.
Link in comments.
#AIAgents #AgentDevice #ReactNative #Codex #MobileDev #AgenticRewind
Agents that can see and tap your app are a big part of what we cover in The Agentic Rewind 👇
Join The Agentic Rewind: trnrw.com/arw-x
agent-device: github.com/callstack/agent-d…
Designer: "When you tap the photo, can it sort of fly into the next screen?"
Me, three GitHub issues deep: "Define fly."
Reanimated 4.7 from @swmansion makes the new layout engine the default, and that's the one shared element transitions run on.
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𝗪𝗵𝗮𝘁'𝘀 𝗶𝗻𝘀𝗶𝗱𝗲
➡️ New layout engine on by default
➡️ More shared element fixes
➡️ Animated gradients via backgroundImage
Shared elements are still experimental, and grab 4.7.1.
Link in comments.
#ReactNative #Reanimated #Animation #iOS #Android #MobileDev
Reanimated releases get the full write-up in The React Native Rewind, our weekly React Native newsletter 👇
Join The React Native Rewind: trnrw.com/YLLZyR
Reanimated 4.7: swmansion.com/changelog/rean…
𝗪𝗵𝗮𝘁'𝘀 𝘁𝗵𝗲 𝗰𝗮𝘁𝗰𝗵?
It's business accounts only for now, and Callstack admit frontier models still win on general knowledge. Try it on a few of your own tickets before you trust a benchmark.
Link in comments.
#ReactNative #AIAgents #AgenticAI #AgenticRewind
Cheaper models that hold up on real work come up a lot in The Agentic Rewind, and Apex was a lead story in issue #1 👇
Join The Agentic Rewind: trnrw.com/arw-x
Apex: apex.callstack.com
iPhone Duo pre-orders open tomorrow, so somewhere a PM is writing a ticket called "fold support (small)".
react-native-arrangement-view by @thiagobrez splits your screen into two panes either side of the hinge on iOS and Android.
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𝗪𝗵𝗮𝘁'𝘀 𝗶𝗻𝘀𝗶𝗱𝗲
➡️ Primary and Secondary panes
➡️ useHingeChange gives you the hinge angle
➡️ A docs example for a tented iPhone Duo bedside clock
Needs a dev build and RN 0.83+.
Link in comments.
#ReactNative #Foldables #iPhoneDuo #iOS #Android #MobileDev
We keep tabs on foldables and the rest of React Native every week in The React Native Rewind, our newsletter 👇
Join The React Native Rewind: trnrw.com/YLLZyR
react-native-arrangement-view: github.com/thiagobrez/react-…
My agent told me it had fixed the layout bug.
It hadn't opened the simulator once.
Mobile Dev for Codex by @lauridskern and Hanno Gödecke puts your iOS simulator and Android emulator next to the chat.
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𝗪𝗵𝗮𝘁'𝘀 𝘁𝗵𝗲 𝗰𝗮𝘁𝗰𝗵?
It's an early preview for the Codex desktop app on Apple Silicon Macs, and iOS needs Xcode 26 or later.
Link in comments.
#ReactNative #Codex #AIAgents #MobileDev #AgenticRewind
Agents that can actually see your app are a big part of what we cover in The Agentic Rewind 👇
Join The Agentic Rewind: trnrw.com/arw-x
Mobile Dev for Codex: callstack.com/blog/introduci…