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Releasing Sauci Mobile App
This guide covers local release builds for Android and iOS.
JavaScript-only changes can also ship over the air between store releases. See
Mobile over-the-air updates. Anything that changes native code
still requires a store build with a bumped expo.version, because the OTA
explicit runtime version is synchronized with the app version.
Prerequisites
- Java JDK 17 - Required for Android Gradle builds
- Android Studio - For SDK and build tools (including Android SDK/NDK)
- Xcode - For iOS builds (macOS only)
- EAS CLI -
npm install -g eas-cli - Expo account - Run
eas loginto authenticate
EAS Build Local (Recommended)
The --local flag runs the EAS build process on your machine instead of Expo's cloud servers. This automatically handles signing credentials and produces the same output as cloud builds.
Quick Start
cd apps/mobile
# Android - produces .aab file (for Play Store)
npm run release:android
# iOS - produces .ipa file (for App Store)
npm run release:ios
Output files are placed in the current directory by default.
These scripts create signed artifacts only. They do not upload or submit them. An explicit request for a mobile release, upload, or store-submission workflow authorizes the requested store upload within its stated platform and destination scope. Building an artifact alone does not authorize an upload.
Submit a local artifact with EAS
The production submission credentials are managed by EAS. Never add App Store
Connect .p8 files, Google service-account JSON files, or local credential paths
to the repository or eas.json.
Submit only an independently verified artifact by its exact absolute path:
cd apps/mobile
# Uploads an Android internal-track draft; it does not roll out the release.
eas submit --platform android --profile production --path /absolute/path/to/sauci.aab --wait
# Uploads to App Store Connect/TestFlight; it does not submit for App Review.
eas submit --platform ios --profile production --path /absolute/path/to/sauci.ipa --wait
Agents must not upload an unverified artifact, whether they use EAS, Fastlane, Xcode Organizer, or a store console. Before upload, they must verify and report the platform, exact path, bundle/package identifier, version, build number, signing identity, SHA-256 digest, and destination. Once those details match the user's stated scope, proceed without asking for a second confirmation.
Before an iOS upload, inspect App Store Connect for automatic TestFlight distribution. If upload will add the build to existing groups or testers, report them before proceeding. If the effect cannot be established, stop. Changing automatic-distribution settings is a separate action and requires its own authorization.
Do not use --latest for a local release. Before upload, verify the artifact's
package or bundle identifier, public version, build number, signature, and
SHA-256 digest. After upload, read back the same identity and version from Google
Play Console or App Store Connect. Public rollout, App Review submission, and
additional TestFlight group distribution remain separate, explicitly authorized
actions unless the original request expressly includes them. If an upload command
returns an ambiguous result, inspect EAS and the store first; do not retry unless
the user explicitly authorizes another upload.
Source integrity
Sauci commits its native ios/ and android/ projects. Start a release from a
clean worktree whose HEAD matches its fetched upstream, and do not run
expo prebuild before a routine release build. EAS detects the native projects
and packages the checked-in sources directly.
After the build, inspect git diff. Only the expected local EAS version fields
may change: app.json, the platform native version file, and the iOS widget
Info.plist for an iOS build. Any widget implementation, resource, or Xcode
project rewrite means the source was regenerated and the artifact must be rebuilt
from the clean tracked sources.
Android media permission policy
Sauci uses the Android system photo picker for user-selected images and videos.
Android release manifests must not contain READ_MEDIA_IMAGES or
READ_MEDIA_VIDEO. Gallery save flows request add-only access and must not add
broad read access. After any Expo, media-library, image-picker, or native Android
change, run :app:processReleaseMainManifest and inspect the merged release
manifest before building an artifact for Google Play.
Building an APK (for Testing)
The production profile creates an AAB (Android App Bundle), which can't be directly installed on devices. To build an APK for testing:
# Use the preview profile (configured for APK output)
eas build --platform android --profile preview --local
Or add a custom profile to eas.json:
{
"build": {
"local-apk": {
"android": {
"buildType": "apk"
}
}
}
}
Then run:
eas build --platform android --profile local-apk --local
Installing the APK
# Via ADB (device connected via USB)
adb install ./build-*.apk
# Or drag-and-drop onto Android Emulator
Build Profiles
| Profile | Output | Use Case |
|---|---|---|
production |
.aab | Play Store / App Store submission |
preview |
.apk | Internal testing, device installation |
development |
.apk | Dev client with hot reload |
Environment Variables
Useful for debugging build issues:
| Variable | Purpose |
|---|---|
EAS_LOCAL_BUILD_SKIP_CLEANUP=1 |
Keep build directory after completion |
EAS_LOCAL_BUILD_WORKINGDIR=/path |
Custom build directory (default: /tmp) |
EAS_LOCAL_BUILD_ARTIFACTS_DIR=/path |
Output directory for build artifacts |
Example with debugging enabled:
EAS_LOCAL_BUILD_SKIP_CLEANUP=1 \
EAS_LOCAL_BUILD_WORKINGDIR=~/eas-builds \
eas build --platform android --profile production --local
Limitations of Local Builds
- Single platform only - Can't use
--platform all - Software versions ignored -
node,yarn,ndk,imagefields in eas.json are ignored - No caching - Each build starts fresh
- Secret env vars not available - Set them in your local environment instead
- macOS/Linux only - Windows requires WSL (unsupported)
Troubleshooting Local Builds
Java version mismatch:
# Check Java version (should be 17)
java -version
# On macOS, switch Java version
export JAVA_HOME=$(/usr/libexec/java_home -v 17)
Gradle daemon issues:
cd android && ./gradlew --stop && cd ..
Native regeneration after dependency changes:
Treat expo prebuild as a source change, not a release step. Run it separately
only when native dependencies intentionally changed, review the full native diff,
verify it, and commit it before starting the release from a clean worktree.
Out of memory:
# Increase Gradle memory
echo "org.gradle.jvmargs=-Xmx4g" >> android/gradle.properties
Manual Android Release Build
Step 1: Get the Production Keystore
The production keystore is stored in EAS. Download it:
cd apps/mobile
eas credentials --platform android
Select:
productionKeystoreDownload Keystore
Save the keystore file and note the password and alias shown.
Step 2: Configure Signing
Ensure android/gradle.properties has the keystore configuration:
MYAPP_UPLOAD_STORE_FILE=sauci-release.keystore
MYAPP_UPLOAD_KEY_ALIAS=<alias from EAS>
MYAPP_UPLOAD_STORE_PASSWORD=<password from EAS>
MYAPP_UPLOAD_KEY_PASSWORD=<password from EAS>
Important: Never commit these credentials to git.
Step 3: Confirm tracked native sources
The committed android/ project is the release source. If native dependencies
changed, regenerate and review that project as a separate change before release.
Step 4: Build the Release Bundle
cd android
./gradlew bundleRelease
The AAB file will be at:
android/app/build/outputs/bundle/release/app-release.aab
Step 5: Upload to Play Store
Apply the upload execution policy above before opening or changing the release. Uploading the AAB and starting any rollout are separate actions unless the original request expressly includes the rollout.
- Go to Google Play Console
- Select Sauci app
- Go to Internal testing, unless the user authorized a different exact track
- Create new release
- Upload the
.aabfile - Add release notes, save the release as a draft, and read it back
Do not send the draft for review or start a rollout unless the original request expressly includes that action.
Verifying Keystore Fingerprint
To verify you're using the correct keystore:
keytool -list -v -keystore android/sauci-release.keystore -storepass <password>
Expected EAS production upload-key SHA1: F0:60:26:C7:54:B0:46:F2:80:FE:AC:43:8A:69:10:BD:9A:62:B4:59
iOS Release Build
Step 1: Confirm tracked native sources
The committed ios/ project is the release source. If native dependencies
changed, regenerate and review that project as a separate change before release.
Step 2: Install Pods
cd ios
pod install
cd ..
Step 3: Build Archive in Xcode
- Open
ios/Sauci.xcworkspacein Xcode - Select Any iOS Device (arm64) as the build target
- Go to Product → Archive
- Wait for the build to complete
Step 4: Upload to App Store
Apply the upload execution policy above before using Xcode Organizer. Report any verified automatic TestFlight distribution before uploading.
- In Xcode Organizer (Window → Organizer), select the archive
- Click Distribute App
- Select App Store Connect → Upload
- Follow the prompts to upload
Step 5: Submit in App Store Connect
Submitting for App Review is not authorized by an upload request unless the original request expressly includes App Review submission.
- Go to App Store Connect
- Select Sauci
- Create a new version or select the uploaded build
- Fill in release notes and submit for review
Version Management
Version is managed locally by EAS with appVersionSource: "local" in
apps/mobile/eas.json. Production builds auto-increment the platform build
number and synchronize the tracked native version file. For a public-version
bump, use the release version script rather than editing individual sources: it
updates and verifies app.json, the explicit Expo runtime string, and the
checked-in iOS and Android public/runtime values together.
node .codex/skills/generate-release/scripts/set_version.mjs --version 1.0.7
node .codex/skills/generate-release/scripts/set_version.mjs --check
To inspect or deliberately set versions:
# Check current version
eas build:version:get
# Set version manually
eas build:version:set --platform android --version 1.0.1
eas build:version:set --platform ios --version 1.0.1
The user-facing version remains in app.json:
{
"expo": {
"version": "1.0.1"
}
}
And for Android, update android/app/build.gradle:
versionCode 2
versionName "1.0.1"
Troubleshooting
Wrong Keystore Error
If Play Store rejects with "signed with wrong key":
- Run
eas credentials --platform android - Download the correct keystore
- Verify fingerprint matches expected SHA1
- Replace your local keystore file
Build Failures After Dependency Changes
# Clean the existing tracked Android project and rebuild it
cd android && ./gradlew clean && cd ..
cd android && ./gradlew bundleRelease
If native regeneration is genuinely required, do it as a separate reviewed and committed source change before running the release build.
iOS Signing Issues
Ensure your Apple Developer certificates and provisioning profiles are up to date in Xcode:
- Xcode → Settings → Accounts → Download Manual Profiles