Build and distribute Expo development clients with EAS Build for iOS/Android testing of custom native code via TestFlight or local installs.
From antigravity-bundle-expo-react-nativenpx claudepluginhub sickn33/antigravity-awesome-skills --plugin antigravity-bundle-expo-react-nativeThis skill uses the workspace's default tool permissions.
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Migrates code, prompts, and API calls from Claude Sonnet 4.0/4.5 or Opus 4.1 to Opus 4.5, updating model strings on Anthropic, AWS, GCP, Azure platforms.
Optimizes cloud costs on AWS, Azure, GCP via rightsizing, tagging strategies, reserved instances, spot usage, and spending analysis. Use for expense reduction and governance.
Use EAS Build to create development clients for testing native code changes on physical devices. Use this for creating custom Expo Go clients for testing branches of your app.
Only create development clients when your app requires custom native code. Most apps work fine in Expo Go.
You need a dev client ONLY when using:
Try Expo Go first with npx expo start. If everything works, you don't need a dev client.
Ensure eas.json has a development profile:
{
"cli": {
"version": ">= 16.0.1",
"appVersionSource": "remote"
},
"build": {
"production": {
"autoIncrement": true
},
"development": {
"autoIncrement": true,
"developmentClient": true
}
},
"submit": {
"production": {},
"development": {}
}
}
Key settings:
developmentClient: true - Bundles expo-dev-client for development buildsautoIncrement: true - Automatically increments build numbersappVersionSource: "remote" - Uses EAS as the source of truth for version numbersBuild iOS dev client and submit to TestFlight in one command:
eas build -p ios --profile development --submit
This will:
After receiving the TestFlight email:
Build a development client on your machine:
# iOS (requires Xcode)
eas build -p ios --profile development --local
# Android
eas build -p android --profile development --local
Local builds output:
.ipa file.apk or .aab fileInstall iOS build on simulator:
# Find the .app in the .tar.gz output
tar -xzf build-*.tar.gz
xcrun simctl install booted ./path/to/App.app
Install iOS build on device (requires signing):
# Use Xcode Devices window or ideviceinstaller
ideviceinstaller -i build.ipa
Install Android build:
adb install build.apk
# iOS only
eas build -p ios --profile development
# Android only
eas build -p android --profile development
# Both platforms
eas build --profile development
# List recent builds
eas build:list
# View build details
eas build:view
Once installed, the dev client provides:
Connect to local development:
# Start Metro bundler
npx expo start --dev-client
# Scan QR code with dev client or enter URL manually
Build fails with signing errors:
eas credentials
Clear build cache:
eas build -p ios --profile development --clear-cache
Check EAS CLI version:
eas --version
eas update