Description

Android E2E builds were hardcoded to x86_64 only, which prevented developers on Apple Silicon Macs from running E2E tests locally (arm64 AVDs and physical devices need arm64-v8a).

The fix detects whether the build is running in CI (CI=true) and scopes the architecture restriction accordingly:

• CI: x86_64 only — unchanged, keeps CI builds fast since GitHub Actions emulators are x86_64.
• Local: x86_64,arm64-v8a — covers Apple Silicon emulators, Intel Mac emulators, and physical devices.

Changelog

CHANGELOG entry:

Related issues

Fixes:

Manual testing steps

Feature: Android E2E local build

  Scenario: developer runs E2E build on Apple Silicon Mac
    Given a macOS Apple Silicon machine with an arm64 Android emulator
    When the developer runs the Android E2E build script locally
    Then the APK is built for both x86_64 and arm64-v8a
    And the APK installs successfully on the arm64 emulator

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I've included tests if applicable
• I've documented my code using JSDoc format if applicable
• I've applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.