Before Moving to Expo SDK 58, List What Disappears in Your Own Code
A small audit script that scans your project for the APIs Expo SDK 58 removes, changes, or deprecates, with the output from a test project and the pitfalls I only noticed once I ran it.
When adjustsFontSizeToFit Shrinks Just One Row, Suspect the Box Height, Not the String
Only the 10th row of a list drops to 4pt on iOS, though the data and strings are fine. I read the Yoga rounding and font-fit sources, then counted how often the box comes up short in Node.
Rork No Longer Creates New Expo Projects: Keep Yours, or Rebuild It in SwiftUI?
You can no longer start an Expo project in Rork, but existing ones keep building and shipping. Here is how to decide whether to stay on Expo or rebuild in SwiftUI, and what quietly goes missing when you rebuild.
I Added a Dim Screen Button, and iPhones Stayed Dark After the App Was Closed
In expo-brightness, setBrightnessAsync applies only to the current activity on Android, but changes the device brightness itself on iOS. Here is why the cleanup burden falls on one platform only, and a hook that restores brightness through AppState.
Whether You Need Rork Max Is Answered by Your Permissions, Not the Price Page
When I cannot decide between standard Rork and Rork Max, I stop reading the price page. Instead I pull every OS capability my app actually asks for out of app.json and Info.plist, then sort them into what Expo covers, what a config plugin covers, and what truly needs native Swift.
EAS secret visibility does not keep a value out of your app — deciding prefix and visibility separately
The EXPO_PUBLIC_ prefix decides what ships inside your app; EAS visibility decides who can read it. Why stacking them blanks a value on OTA updates, and how to check your build.
Adding image paste with expo-paste-input, and moving the disappearing file:// URIs out of cache
How to let users paste images and GIFs into a chat input with expo-paste-input. The URIs that onPaste hands you are temporary files that can vanish before the user hits send. Here is the relocation code and the order I verify it on real devices.
Three Minutes After the Screen Locked, My expo-audio Ambient Sound Went Silent
Why expo-audio stops playing when the screen locks, diagnosed as three separate layers: build config, audio session, and lock screen integration. The three-minute stop on Android is documented behavior.
Put Your Live Rork App on a Spare iPhone Before iOS 27 Ships
iOS 27 arrives in September and developer beta 7 is already out. Here is how to turn an old iPhone into a beta device, what to check first, and which fixes you can ship from JavaScript without waiting for review.
I Moved My Dark Mode Checks Into DevTools, and Only Four Places Still Need a Real Device
Expo SDK 57 added light and dark emulation to React Native DevTools, which ended my trips to the Settings app. What it swaps is the value JavaScript reports, so a few places still need a real toggle. Here is how to find that boundary in your own project.
Predictive back on Android 16: what to fix before August 31, and what can wait
Targeting API 36 turns predictive back on by default and stops onBackPressed from firing. Here is how I split the work that the deadline actually requires from the work that does not, and how I kept the opt-out from disappearing on the next prebuild.
Every bulk replace exited zero. The damage was in the lines I did not delete
Run a bulk replace over generated code and the breakage lands on the neighbouring lines, not the matched ones. Here is what broke in a live project, and a dependency-free guard that checks the invariants a replace must preserve.