@zobira/expo-build-accelerator

Expo config plugin that makes repeated Android builds fast. It is the app half of the Zobira pipeline's build caching (the pipeline half — fixed EAS working directory, ccache, per-environment ABIs — is in the Jenkins library, docs/expo.md, "Build speed").

bun add -d @zobira/expo-build-accelerator

// app.config.ts
plugins: [
  "@zobira/expo-build-accelerator",
  // or with options:
  // ["@zobira/expo-build-accelerator", { jvmArgs: "-Xmx6g" }],
]

It writes to android/gradle.properties at prebuild (which eas build --local runs fresh every time, so these can't be committed):

| Property | Default | Option | |----------|---------|--------| | org.gradle.caching | true | buildCache: false to leave it off | | org.gradle.parallel | true | parallel: false | | org.gradle.jvmargs | -Xmx4096m -XX:MaxMetaspaceSize=1024m (SDK 54's 2 GB OOMs on large native apps) | jvmArgs: "<args>", or null to keep the template's | | reactNativeArchitectures | untouched (all four ABIs) | $ZOBIRA_ANDROID_ARCHITECTURES (set by the pipeline per environment) wins over architectures: [...] |

An unknown ABI fails expo config immediately rather than producing an APK that runs nowhere.

Replaces per-app copies of a "raise the Gradle heap" plugin — remove those when adding this.

Develop

bun test test

The plugin was verified end to end with expo prebuild on an SDK 54 app (with and without ZOBIRA_ANDROID_ARCHITECTURES).