Release builds had R8 and resource shrinking off, so every class of
every dependency went into the APK unminified: the published 0.1.62 is
42.8 MB for arm64, 25.85 MB of it dex (PF9 in the audit).
Turn both on through the properties build.gradle already reads
(`android.enableMinifyInReleaseBuilds` and
`android.enableShrinkResourcesInReleaseBuilds`). The consumer rules of
React Native, Expo, Firebase, ML Kit and the other libraries cover what
they load by reflection. The app's own package is kept whole, which
costs a few KB and keeps its frames readable in an obfuscated stack
trace.
Measured on a local x86_64 release build:
- APK: 44.7 MB -> 38.0 MB (download size 23.8 MB -> 17.2 MB)
- dex: 30.4 MB in 4 files -> 11.3 MB in 2 files
- classes: 27,631 -> 16,724
With `-dontobfuscate` the APK would be 38.8 MB (13.5 MB of dex), so
obfuscation stays on. Library frames in a release stack trace are now
obfuscated; retrace them with that build's
`android/app/build/outputs/mapping/release/mapping.txt`.
Checked on the emulator: cold start in light and dark mode, German and
Russian strings, SENDTO and VIEW mailto and SEND share intents, every
sign-in screen, the QR scanner with ML Kit, and an FCM data message
starting the headless push task.
CI:
- .github/workflows/release-android.yml builds APK on release publish
and via workflow_dispatch, attaches it to the release.
- android/app/build.gradle: optional release signingConfig driven by
Gradle properties (ANDROID_KEYSTORE_BASE64 secret etc.); falls back
to the debug keystore when no secrets are set.
- .gitignore: untrack /android so the runner can build directly;
ignore build outputs (build/, .cxx/), Metro/Expo dev logs, scratch.
Track android/ sources including BulwarkFcmPackage.kt and
google-services.json (Firebase Android keys are public per Google's
docs and intended to ship in the APK).
JS sync: push notifications + background task, vacation responder
(api + store), contact activity component, search utilities, settings
polish, calendar/contacts/email store and screen tweaks.
Tooling: scripts/poll-reload.mjs — Windows polling-watcher that hits
Metro /reload on file change (workaround for unreliable fs.watch
without Watchman).
Linus Rath