diff --git a/.github/workflows/fork-release.yml b/.github/workflows/fork-release.yml
index d2f752ba22050..2a346ef8c75cc 100644
--- a/.github/workflows/fork-release.yml
+++ b/.github/workflows/fork-release.yml
@@ -348,23 +348,53 @@ jobs:
       # upstream's preview bundles. The release version replaces upstream's
       # store version so Obtainium can match the APK to its release tag. It
       # goes in .env because the Gradle bundling step reads app.config.ts again.
+      # The fork ships its own app: the ember icon always, and the package name,
+      # app name and Firebase config from repository settings when they are set.
+      # Without Firebase config the app builds without push notifications.
       - name: Configure the build
         env:
           VERSION: ${{ needs.prepare.outputs.version }}
+          ANDROID_PACKAGE: ${{ vars.T3CODE_ANDROID_PACKAGE }}
+          APP_NAME: ${{ vars.T3CODE_APP_NAME }}
+          GOOGLE_SERVICES_JSON: ${{ secrets.ANDROID_GOOGLE_SERVICES_JSON }}
         run: |
           cp .env.example .env
-          echo "T3CODE_MOBILE_UPDATES_ENABLED=0" >> .env
-          echo "T3CODE_MOBILE_VERSION=$VERSION" >> .env
+          {
+            echo "T3CODE_MOBILE_UPDATES_ENABLED=0"
+            echo "T3CODE_MOBILE_VERSION=$VERSION"
+            echo "T3CODE_ANDROID_ICON_BACKGROUND=./assets/android-icon-background-ember.png"
+            echo "T3CODE_ANDROID_PACKAGE=$ANDROID_PACKAGE"
+            echo "T3CODE_APP_NAME=$APP_NAME"
+          } >> .env
+          if [ -n "$GOOGLE_SERVICES_JSON" ]; then
+            printf '%s' "$GOOGLE_SERVICES_JSON" > "$RUNNER_TEMP/google-services.json"
+            echo "T3CODE_ANDROID_GOOGLE_SERVICES_FILE=$RUNNER_TEMP/google-services.json" >> .env
+          fi
 
       - name: Generate the native project
         working-directory: apps/mobile
         run: ./node_modules/.bin/expo prebuild --platform android --clean --no-install
 
-      # Release builds sign with the React Native template's debug keystore,
-      # the same key as the APK already installed from earlier fork builds.
+      # Signs with the repository's release keystore when one is set, and
+      # otherwise with the React Native template's public debug keystore.
       - name: Build release APK
         working-directory: apps/mobile/android
-        run: ./gradlew :app:assembleRelease -PreactNativeArchitectures=arm64-v8a -x lintVitalAnalyzeRelease --no-daemon
+        env:
+          KEYSTORE_BASE64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
+          KEYSTORE_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
+          KEY_ALIAS: ${{ secrets.ANDROID_KEY_ALIAS }}
+        run: |
+          signing=()
+          if [ -n "$KEYSTORE_BASE64" ]; then
+            printf '%s' "$KEYSTORE_BASE64" | base64 -d > "$RUNNER_TEMP/release.keystore"
+            signing=(
+              "-Pandroid.injected.signing.store.file=$RUNNER_TEMP/release.keystore"
+              "-Pandroid.injected.signing.store.password=$KEYSTORE_PASSWORD"
+              "-Pandroid.injected.signing.key.alias=$KEY_ALIAS"
+              "-Pandroid.injected.signing.key.password=$KEYSTORE_PASSWORD"
+            )
+          fi
+          ./gradlew :app:assembleRelease -PreactNativeArchitectures=arm64-v8a -x lintVitalAnalyzeRelease --no-daemon "${signing[@]}"
 
       - name: Collect APK
         env:
diff --git a/FORK.md b/FORK.md
index 901559213762f..3c7036d2e508c 100644
--- a/FORK.md
+++ b/FORK.md
@@ -71,3 +71,6 @@ adds the feature, and remove it in the PR that drops the feature.
 - #30 A checkout's pull requests and repository come from the remote `gh repo set-default`
   chose, ahead of `upstream`, so a fork lists its own PRs:
   `apps/server/src/project/RepositoryIdentityResolver.ts` (`parseGhDefaultRemote`).
+- #32 The Android APK is the fork's own app: an ember icon, plus the package name, app name, release
+  keystore and Firebase config from repository variables and secrets when they are set:
+  `apps/mobile/app.config.ts` (`T3CODE_ANDROID_PACKAGE`), `.github/workflows/fork-release.yml`.
diff --git a/apps/mobile/app.config.ts b/apps/mobile/app.config.ts
index 1caf24896e6e9..63972f999967b 100644
--- a/apps/mobile/app.config.ts
+++ b/apps/mobile/app.config.ts
@@ -124,6 +124,17 @@ const iosBundleIdentifier = isIosPersonalTeamBuild
   ? personalTeamBundleIdentifier!
   : variant.iosBundleIdentifier;
 
+// Fork builds rebrand the Android app here; unset values keep the variant's.
+const appName = repoEnv.T3CODE_APP_NAME?.trim() || variant.appName;
+const androidPackage = repoEnv.T3CODE_ANDROID_PACKAGE?.trim() || variant.androidPackage;
+const androidAdaptiveBackgroundImage =
+  repoEnv.T3CODE_ANDROID_ICON_BACKGROUND?.trim() || variant.assets.androidAdaptiveBackgroundImage;
+if (!/^[A-Za-z][A-Za-z0-9_]*(?:\.[A-Za-z][A-Za-z0-9_]*)+$/.test(androidPackage)) {
+  throw new Error(
+    "T3CODE_ANDROID_PACKAGE must be an Android package name such as com.example.t3code.",
+  );
+}
+
 const dmSansFonts = {
   regular: "@expo-google-fonts/dm-sans/400Regular/DMSans_400Regular.ttf",
   medium: "@expo-google-fonts/dm-sans/500Medium/DMSans_500Medium.ttf",
@@ -228,7 +239,7 @@ const sharingPlugin: NonNullable<ExpoConfig["plugins"]>[number] = [
 // Match iOS PostScript names on Android so RN and the native composer share fonts before runtime loading.
 
 const config: ExpoConfig = {
-  name: variant.appName,
+  name: appName,
   slug: "t3-code",
   platforms: ["ios", "android"],
   scheme: variant.scheme,
@@ -291,14 +302,14 @@ const config: ExpoConfig = {
   },
   android: {
     icon: variant.assets.appIcon,
-    package: variant.androidPackage,
+    package: androidPackage,
     ...(repoEnv.T3CODE_ANDROID_GOOGLE_SERVICES_FILE
       ? { googleServicesFile: repoEnv.T3CODE_ANDROID_GOOGLE_SERVICES_FILE }
       : {}),
     adaptiveIcon: {
       backgroundColor: variant.assets.androidAdaptiveBackgroundColor,
-      ...(variant.assets.androidAdaptiveBackgroundImage
-        ? { backgroundImage: variant.assets.androidAdaptiveBackgroundImage }
+      ...(androidAdaptiveBackgroundImage
+        ? { backgroundImage: androidAdaptiveBackgroundImage }
         : {}),
       foregroundImage: variant.assets.androidAdaptiveForeground,
       monochromeImage: variant.assets.androidMonochromeIcon,
diff --git a/apps/mobile/assets/android-icon-background-ember.png b/apps/mobile/assets/android-icon-background-ember.png
new file mode 100644
index 0000000000000..7cd310448697a
Binary files /dev/null and b/apps/mobile/assets/android-icon-background-ember.png differ