diff --git a/app-nia-catalog/build.gradle.kts b/app-nia-catalog/build.gradle.kts
index 33ce4dc24..898a66906 100644
--- a/app-nia-catalog/build.gradle.kts
+++ b/app-nia-catalog/build.gradle.kts
@@ -32,6 +32,7 @@ android {
             excludes.add("/META-INF/{AL2.0,LGPL2.1}")
         }
     }
+    namespace = "com.google.samples.apps.niacatalog"
 }
 
 dependencies {
diff --git a/app-nia-catalog/src/main/AndroidManifest.xml b/app-nia-catalog/src/main/AndroidManifest.xml
index 0d74ce017..90341aac1 100644
--- a/app-nia-catalog/src/main/AndroidManifest.xml
+++ b/app-nia-catalog/src/main/AndroidManifest.xml
@@ -14,8 +14,7 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.niacatalog">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:allowBackup="true"
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index f887e7f35..10bfe9c22 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -13,8 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import com.google.samples.apps.nowinandroid.Flavor
-import com.google.samples.apps.nowinandroid.FlavorDimension
 
 plugins {
     id("nowinandroid.android.application")
@@ -75,6 +73,7 @@ android {
             isIncludeAndroidResources = true
         }
     }
+    namespace = "com.google.samples.apps.nowinandroid"
 }
 
 dependencies {
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 821bc605e..858ae9b19 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -15,8 +15,7 @@
      limitations under the License.
 -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    package="com.google.samples.apps.nowinandroid">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <uses-permission android:name="android.permission.INTERNET" />
 
diff --git a/core/common/build.gradle.kts b/core/common/build.gradle.kts
index 42e9d8e12..491dffd80 100644
--- a/core/common/build.gradle.kts
+++ b/core/common/build.gradle.kts
@@ -19,6 +19,10 @@ plugins {
     id("nowinandroid.android.hilt")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.core.common"
+}
+
 dependencies {
     implementation(libs.kotlinx.coroutines.android)
     testImplementation(project(":core:testing"))
diff --git a/core/common/src/main/AndroidManifest.xml b/core/common/src/main/AndroidManifest.xml
index a0b613a7b..ec921f928 100644
--- a/core/common/src/main/AndroidManifest.xml
+++ b/core/common/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.common">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/core/data-test/build.gradle.kts b/core/data-test/build.gradle.kts
index 5dacd8253..f50e7b4b8 100644
--- a/core/data-test/build.gradle.kts
+++ b/core/data-test/build.gradle.kts
@@ -18,6 +18,10 @@ plugins {
     id("nowinandroid.android.hilt")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.core.data.test"
+}
+
 dependencies {
     api(project(":core:data"))
     implementation(project(":core:testing"))
diff --git a/core/data-test/src/main/AndroidManifest.xml b/core/data-test/src/main/AndroidManifest.xml
index 2ce7621ac..547d48054 100644
--- a/core/data-test/src/main/AndroidManifest.xml
+++ b/core/data-test/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.data.test">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
diff --git a/core/data/build.gradle.kts b/core/data/build.gradle.kts
index 750be3700..44a186647 100644
--- a/core/data/build.gradle.kts
+++ b/core/data/build.gradle.kts
@@ -20,6 +20,10 @@ plugins {
     id("kotlinx-serialization")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.core.data"
+}
+
 dependencies {
     implementation(project(":core:common"))
     implementation(project(":core:model"))
@@ -35,4 +39,4 @@ dependencies {
     implementation(libs.kotlinx.datetime)
     implementation(libs.kotlinx.coroutines.android)
     implementation(libs.kotlinx.serialization.json)
-}
+}
\ No newline at end of file
diff --git a/core/data/src/main/AndroidManifest.xml b/core/data/src/main/AndroidManifest.xml
index ab11f61c4..a5c595622 100644
--- a/core/data/src/main/AndroidManifest.xml
+++ b/core/data/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.data">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 </manifest>
\ No newline at end of file
diff --git a/core/database/build.gradle.kts b/core/database/build.gradle.kts
index 6bcabe042..b0200b333 100644
--- a/core/database/build.gradle.kts
+++ b/core/database/build.gradle.kts
@@ -33,6 +33,7 @@ android {
 
         testInstrumentationRunner = "com.google.samples.apps.nowinandroid.core.testing.NiaTestRunner"
     }
+    namespace = "com.google.samples.apps.nowinandroid.core.database"
 }
 
 dependencies {
diff --git a/core/database/src/main/AndroidManifest.xml b/core/database/src/main/AndroidManifest.xml
index ae6d3fe50..ec921f928 100644
--- a/core/database/src/main/AndroidManifest.xml
+++ b/core/database/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.database">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/core/datastore-test/build.gradle.kts b/core/datastore-test/build.gradle.kts
index 67c32cc45..40b287b7b 100644
--- a/core/datastore-test/build.gradle.kts
+++ b/core/datastore-test/build.gradle.kts
@@ -18,6 +18,10 @@ plugins {
     id("nowinandroid.android.hilt")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.core.datastore.test"
+}
+
 dependencies {
     api(project(":core:datastore"))
     implementation(project(":core:testing"))
diff --git a/core/datastore-test/src/main/AndroidManifest.xml b/core/datastore-test/src/main/AndroidManifest.xml
index e0d63ea27..ec921f928 100644
--- a/core/datastore-test/src/main/AndroidManifest.xml
+++ b/core/datastore-test/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.datastore.test">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/core/datastore/build.gradle.kts b/core/datastore/build.gradle.kts
index 616256bf5..519ce49c3 100644
--- a/core/datastore/build.gradle.kts
+++ b/core/datastore/build.gradle.kts
@@ -32,6 +32,7 @@ android {
     defaultConfig {
         consumerProguardFiles("consumer-proguard-rules.pro")
     }
+    namespace = "com.google.samples.apps.nowinandroid.core.datastore"
 }
 
 // Setup protobuf configuration, generating lite Java and Kotlin classes
diff --git a/core/datastore/src/main/AndroidManifest.xml b/core/datastore/src/main/AndroidManifest.xml
index d07c935fa..ec921f928 100644
--- a/core/datastore/src/main/AndroidManifest.xml
+++ b/core/datastore/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.datastore">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/core/designsystem/build.gradle.kts b/core/designsystem/build.gradle.kts
index 63c67e486..0b0db6155 100644
--- a/core/designsystem/build.gradle.kts
+++ b/core/designsystem/build.gradle.kts
@@ -26,6 +26,7 @@ android {
     lint {
         checkDependencies = true
     }
+    namespace = "com.google.samples.apps.nowinandroid.core.designsystem"
 }
 
 dependencies {
diff --git a/core/designsystem/src/main/AndroidManifest.xml b/core/designsystem/src/main/AndroidManifest.xml
index 0f6a479a3..ec921f928 100644
--- a/core/designsystem/src/main/AndroidManifest.xml
+++ b/core/designsystem/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.designsystem">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/core/navigation/build.gradle.kts b/core/navigation/build.gradle.kts
index 396f12b18..f762d5b7d 100644
--- a/core/navigation/build.gradle.kts
+++ b/core/navigation/build.gradle.kts
@@ -21,6 +21,10 @@ plugins {
     id("nowinandroid.android.hilt")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.core.navigation"
+}
+
 dependencies {
     api(libs.androidx.hilt.navigation.compose)
     api(libs.androidx.navigation.compose)
diff --git a/core/navigation/src/main/AndroidManifest.xml b/core/navigation/src/main/AndroidManifest.xml
index 915676f9b..ec921f928 100644
--- a/core/navigation/src/main/AndroidManifest.xml
+++ b/core/navigation/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.navigation">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/core/network/build.gradle.kts b/core/network/build.gradle.kts
index ba3fc63ad..7ac3a7b8b 100644
--- a/core/network/build.gradle.kts
+++ b/core/network/build.gradle.kts
@@ -26,6 +26,7 @@ android {
     buildFeatures {
         buildConfig = true
     }
+    namespace = "com.google.samples.apps.nowinandroid.core.network"
 }
 
 secrets {
diff --git a/core/network/src/main/AndroidManifest.xml b/core/network/src/main/AndroidManifest.xml
index 0d9ff8a0f..0cb50fd30 100644
--- a/core/network/src/main/AndroidManifest.xml
+++ b/core/network/src/main/AndroidManifest.xml
@@ -14,8 +14,7 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.network">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <uses-permission android:name="android.permission.INTERNET" />
 
 </manifest>
\ No newline at end of file
diff --git a/core/testing/build.gradle.kts b/core/testing/build.gradle.kts
index 0a8b77838..61bff3395 100644
--- a/core/testing/build.gradle.kts
+++ b/core/testing/build.gradle.kts
@@ -18,6 +18,10 @@ plugins {
     id("nowinandroid.android.hilt")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.core.testing"
+}
+
 dependencies {
     implementation(project(":core:common"))
     implementation(project(":core:data"))
diff --git a/core/testing/src/main/AndroidManifest.xml b/core/testing/src/main/AndroidManifest.xml
index 42486709c..ec921f928 100644
--- a/core/testing/src/main/AndroidManifest.xml
+++ b/core/testing/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.testing">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/core/ui/build.gradle.kts b/core/ui/build.gradle.kts
index de5d1cf30..5aeab9b74 100644
--- a/core/ui/build.gradle.kts
+++ b/core/ui/build.gradle.kts
@@ -19,6 +19,10 @@ plugins {
     id("nowinandroid.android.library.jacoco")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.core.ui"
+}
+
 dependencies {
     implementation(project(":core:designsystem"))
     implementation(project(":core:model"))
diff --git a/core/ui/src/main/AndroidManifest.xml b/core/ui/src/main/AndroidManifest.xml
index 864e3481d..ec921f928 100644
--- a/core/ui/src/main/AndroidManifest.xml
+++ b/core/ui/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.ui">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/feature/author/build.gradle.kts b/feature/author/build.gradle.kts
index 5c2cd37ed..cf52f1751 100644
--- a/feature/author/build.gradle.kts
+++ b/feature/author/build.gradle.kts
@@ -19,6 +19,10 @@ plugins {
     id("nowinandroid.android.library.jacoco")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.feature.author"
+}
+
 dependencies {
     implementation(libs.kotlinx.datetime)
 }
diff --git a/feature/author/src/main/AndroidManifest.xml b/feature/author/src/main/AndroidManifest.xml
index bd1b40b71..547d48054 100644
--- a/feature/author/src/main/AndroidManifest.xml
+++ b/feature/author/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.feature.author">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
diff --git a/feature/bookmarks/build.gradle.kts b/feature/bookmarks/build.gradle.kts
index a1c4a4260..9db302e99 100644
--- a/feature/bookmarks/build.gradle.kts
+++ b/feature/bookmarks/build.gradle.kts
@@ -19,6 +19,10 @@ plugins {
     id("nowinandroid.android.library.jacoco")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.feature.bookmarks"
+}
+
 dependencies {
     implementation(libs.androidx.compose.material3.windowSizeClass)
 }
\ No newline at end of file
diff --git a/feature/bookmarks/src/main/AndroidManifest.xml b/feature/bookmarks/src/main/AndroidManifest.xml
index a6641fae1..ec921f928 100644
--- a/feature/bookmarks/src/main/AndroidManifest.xml
+++ b/feature/bookmarks/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.feature.bookmarks">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/feature/foryou/build.gradle.kts b/feature/foryou/build.gradle.kts
index 37baf1049..ae2d380e6 100644
--- a/feature/foryou/build.gradle.kts
+++ b/feature/foryou/build.gradle.kts
@@ -19,6 +19,10 @@ plugins {
     id("nowinandroid.android.library.jacoco")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.feature.foryou"
+}
+
 dependencies {
     implementation(libs.kotlinx.datetime)
 
diff --git a/feature/foryou/src/main/AndroidManifest.xml b/feature/foryou/src/main/AndroidManifest.xml
index f72fbc540..ec921f928 100644
--- a/feature/foryou/src/main/AndroidManifest.xml
+++ b/feature/foryou/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.feature.foryou">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/feature/interests/build.gradle.kts b/feature/interests/build.gradle.kts
index 335b2af9b..de3f7854b 100644
--- a/feature/interests/build.gradle.kts
+++ b/feature/interests/build.gradle.kts
@@ -18,3 +18,6 @@ plugins {
     id("nowinandroid.android.library.compose")
     id("nowinandroid.android.library.jacoco")
 }
+android {
+    namespace = "com.google.samples.apps.nowinandroid.feature.interests"
+}
diff --git a/feature/interests/src/main/AndroidManifest.xml b/feature/interests/src/main/AndroidManifest.xml
index 13505caf9..ec921f928 100644
--- a/feature/interests/src/main/AndroidManifest.xml
+++ b/feature/interests/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.feature.interests">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
\ No newline at end of file
diff --git a/feature/topic/build.gradle.kts b/feature/topic/build.gradle.kts
index 1fef08011..70c730dbd 100644
--- a/feature/topic/build.gradle.kts
+++ b/feature/topic/build.gradle.kts
@@ -19,6 +19,10 @@ plugins {
     id("nowinandroid.android.library.jacoco")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.feature.topic"
+}
+
 dependencies {
     implementation(libs.kotlinx.datetime)
 }
\ No newline at end of file
diff --git a/feature/topic/src/main/AndroidManifest.xml b/feature/topic/src/main/AndroidManifest.xml
index be0731035..547d48054 100644
--- a/feature/topic/src/main/AndroidManifest.xml
+++ b/feature/topic/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.feature.topic">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
diff --git a/sync/sync-test/build.gradle.kts b/sync/sync-test/build.gradle.kts
index 4abdf001c..99909af6b 100644
--- a/sync/sync-test/build.gradle.kts
+++ b/sync/sync-test/build.gradle.kts
@@ -18,6 +18,10 @@ plugins {
     id("nowinandroid.android.hilt")
 }
 
+android {
+    namespace = "com.google.samples.apps.nowinandroid.core.sync.test"
+}
+
 dependencies {
     api(project(":sync:work"))
     implementation(project(":core:data"))
diff --git a/sync/sync-test/src/main/AndroidManifest.xml b/sync/sync-test/src/main/AndroidManifest.xml
index 7550c99bb..547d48054 100644
--- a/sync/sync-test/src/main/AndroidManifest.xml
+++ b/sync/sync-test/src/main/AndroidManifest.xml
@@ -14,7 +14,6 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.google.samples.apps.nowinandroid.core.sync.test">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
 </manifest>
diff --git a/sync/work/build.gradle.kts b/sync/work/build.gradle.kts
index 2bf94d6c2..70f6b2e89 100644
--- a/sync/work/build.gradle.kts
+++ b/sync/work/build.gradle.kts
@@ -23,6 +23,7 @@ android {
     defaultConfig {
         testInstrumentationRunner = "com.google.samples.apps.nowinandroid.core.testing.NiaTestRunner"
     }
+    namespace = "com.google.samples.apps.nowinandroid.sync"
 }
 
 dependencies {
diff --git a/sync/work/src/main/AndroidManifest.xml b/sync/work/src/main/AndroidManifest.xml
index b06d3c873..2487eb105 100644
--- a/sync/work/src/main/AndroidManifest.xml
+++ b/sync/work/src/main/AndroidManifest.xml
@@ -15,8 +15,7 @@
      limitations under the License.
 -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    package="com.google.samples.apps.nowinandroid.sync">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <application>
         <provider