From 5ba16edde991ab39bec27283a85072b5d3750be8 Mon Sep 17 00:00:00 2001
From: Aurimas <aurimas@google.com>
Date: Fri, 30 Jan 2026 09:17:35 -0800
Subject: [PATCH] Apply spotless by default (#2055)

* Apply spotless by default

- Upgrades to spotless 8.2.1
- Moves spotless setup from an init.gradle.kts to build-logic
- Narrows down the scope of `target` in spotless configuration to
  be more precise to workaround https://github.com/diffplug/spotless/issues/2717
- Updates all references to init.gradle.kts

Ran gradle-profiler ./gradlew build --dry-run to validate performance
impact.
Before PR:
Mean 10,527.96 ms with 289.01 ms std dev
After PR:
Mean 11,251.78 ms with 530.29 ms std dev

Regression is there, but quite minor.

Test: ./gradlew spotlessCheck

* Address comments from AI overlords

* Fix usage of rootProject

* Enable spotless for build-logic via root project
---
 .github/pull_request_template.md              |  2 +-
 .github/workflows/Build.yaml                  |  2 +-
 .run/spotlessApply.run.xml                    |  1 -
 AGENTS.md                                     |  2 +-
 app-nia-catalog/src/main/AndroidManifest.xml  |  2 +-
 .../res/mipmap-anydpi-v26/ic_launcher.xml     |  2 +-
 .../mipmap-anydpi-v26/ic_launcher_round.xml   |  2 +-
 .../src/main/res/values/strings.xml           |  2 +-
 .../src/main/res/values/themes.xml            |  2 +-
 .../res/mipmap-anydpi-v26/ic_launcher.xml     |  2 +-
 .../mipmap-anydpi-v26/ic_launcher_round.xml   |  2 +-
 app/src/prod/AndroidManifest.xml              |  2 +-
 build-logic/convention/build.gradle.kts       |  1 +
 ...droidApplicationComposeConventionPlugin.kt | 18 ++---
 .../AndroidApplicationConventionPlugin.kt     | 20 ++---
 ...roidApplicationFirebaseConventionPlugin.kt | 20 ++---
 ...droidApplicationFlavorsConventionPlugin.kt | 20 ++---
 ...ndroidApplicationJacocoConventionPlugin.kt | 18 ++---
 .../AndroidFeatureApiConventionPlugin.kt      | 19 +++--
 .../AndroidFeatureImplConventionPlugin.kt     | 18 ++---
 .../AndroidLibraryComposeConventionPlugin.kt  | 18 ++---
 .../kotlin/AndroidLibraryConventionPlugin.kt  | 20 ++---
 .../AndroidLibraryJacocoConventionPlugin.kt   | 18 ++---
 .../kotlin/AndroidLintConventionPlugin.kt     | 18 ++---
 .../kotlin/AndroidRoomConventionPlugin.kt     | 18 ++---
 .../kotlin/AndroidTestConventionPlugin.kt     | 18 ++---
 .../src/main/kotlin/HiltConventionPlugin.kt   | 18 ++---
 .../main/kotlin/JvmLibraryConventionPlugin.kt | 20 ++---
 .../convention/src/main/kotlin/RootPlugin.kt  |  2 +
 .../nowinandroid/AndroidInstrumentedTests.kt  | 22 ++---
 .../samples/apps/nowinandroid/Badging.kt      | 20 +++--
 .../apps/nowinandroid/GradleManagedDevices.kt | 19 +++--
 .../samples/apps/nowinandroid/Jacoco.kt       |  6 +-
 .../apps/nowinandroid/KotlinAndroid.kt        |  2 +-
 .../samples/apps/nowinandroid/NiaBuildType.kt | 18 ++---
 .../samples/apps/nowinandroid/NiaFlavor.kt    | 18 ++++-
 .../apps/nowinandroid/PrintTestApks.kt        | 25 +++---
 .../apps/nowinandroid/ProjectExtensions.kt    | 18 ++---
 .../samples/apps/nowinandroid/Spotless.kt     | 80 +++++++++++++++++++
 build.gradle.kts                              |  1 +
 core/analytics/src/main/AndroidManifest.xml   |  2 +-
 core/common/build.gradle.kts                  |  2 +-
 core/data/src/main/AndroidManifest.xml        |  2 +-
 core/database/src/main/AndroidManifest.xml    |  2 +-
 .../src/main/AndroidManifest.xml              |  2 +-
 core/datastore/src/main/AndroidManifest.xml   |  2 +-
 .../designsystem/src/main/AndroidManifest.xml |  2 +-
 core/domain/build.gradle.kts                  |  2 +-
 core/domain/src/main/AndroidManifest.xml      |  2 +-
 core/network/src/main/AndroidManifest.xml     |  2 +-
 ...core_notifications_ic_nia_notification.xml |  2 +-
 .../src/main/AndroidManifest.xml              |  2 +-
 core/testing/src/main/AndroidManifest.xml     |  2 +-
 core/ui/src/main/AndroidManifest.xml          |  2 +-
 feature/bookmarks/api/build.gradle.kts        |  2 +-
 .../impl/src/main/AndroidManifest.xml         |  2 +-
 .../foryou/api/src/main/AndroidManifest.xml   |  2 +-
 .../api/src/main/res/values/strings.xml       |  2 +-
 feature/foryou/impl/build.gradle.kts          |  2 +-
 feature/interests/api/build.gradle.kts        |  2 +-
 .../api/src/main/AndroidManifest.xml          |  2 +-
 ...re_interests_api_ic_detail_placeholder.xml |  2 +-
 feature/search/api/build.gradle.kts           |  1 -
 feature/search/impl/build.gradle.kts          |  2 +-
 feature/topic/api/build.gradle.kts            |  2 +-
 feature/topic/impl/build.gradle.kts           |  2 +-
 gradle/init.gradle.kts                        | 59 --------------
 gradle/libs.versions.toml                     |  4 +
 tools/pre-push                                |  2 +-
 .../src/main/AndroidManifest.xml              |  2 +-
 70 files changed, 349 insertions(+), 305 deletions(-)
 create mode 100644 build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Spotless.kt
 delete mode 100644 gradle/init.gradle.kts

diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 265ff2ba5..efe4ef29a 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -10,7 +10,7 @@ Thanks for submitting a pull request. To accept your pull request we need you do
 **Ensure tests pass and code is formatted correctly**
 
 - Run local tests on the `DemoDebug` variant by running `./gradlew testDemoDebug`
-- Fix code formatting: `./gradlew --init-script gradle/init.gradle.kts spotlessApply`
+- Fix code formatting: `./gradlew spotlessApply`
 
 **Add a description**
 
diff --git a/.github/workflows/Build.yaml b/.github/workflows/Build.yaml
index 7e5a80eea..eec554b37 100644
--- a/.github/workflows/Build.yaml
+++ b/.github/workflows/Build.yaml
@@ -48,7 +48,7 @@ jobs:
         run: ./gradlew :build-logic:convention:check
 
       - name: Check spotless
-        run: ./gradlew spotlessCheck --init-script gradle/init.gradle.kts --no-configuration-cache
+        run: ./gradlew spotlessCheck
 
       - name: Check Dependency Guard
         id: dependencyguard_verify
diff --git a/.run/spotlessApply.run.xml b/.run/spotlessApply.run.xml
index 5c4dac833..03bd19a6d 100644
--- a/.run/spotlessApply.run.xml
+++ b/.run/spotlessApply.run.xml
@@ -4,7 +4,6 @@
       <option name="executionName" />
       <option name="externalProjectPath" value="$PROJECT_DIR$" />
       <option name="externalSystemIdString" value="GRADLE" />
-      <option name="scriptParameters" value="--init-script=gradle/init.gradle.kts" />
       <option name="taskDescriptions">
         <list />
       </option>
diff --git a/AGENTS.md b/AGENTS.md
index efb39ef19..edcfd396e 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -26,7 +26,7 @@ The main Android app lives in the `app/` folder. Feature modules live in `featur
 The app and Android libraries have two product flavors: `demo` and `prod`, and two build types: `debug` and `release`.
 
 - Build: `./gradlew assemble{Variant}`. Typically `assembleDemoDebug`.
-- Fix linting/formatting: `./gradlew --init-script gradle/init.gradle.kts spotlessApply`
+- Fix linting/formatting: `./gradlew spotlessApply`
 - Run local tests: `./gradlew {variant}Test`
 - Run single test: `./gradlew {variant}Test --tests "com.example.myapp.MyTestClass"`
 - Run local screenshot tests: `./gradlew verifyRoborazziDemoDebug`
diff --git a/app-nia-catalog/src/main/AndroidManifest.xml b/app-nia-catalog/src/main/AndroidManifest.xml
index 90341aac1..57286c5f1 100644
--- a/app-nia-catalog/src/main/AndroidManifest.xml
+++ b/app-nia-catalog/src/main/AndroidManifest.xml
@@ -36,4 +36,4 @@
         </activity>
     </application>
 
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/app-nia-catalog/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app-nia-catalog/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
index 28878a729..9572fa6cb 100644
--- a/app-nia-catalog/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app-nia-catalog/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -18,4 +18,4 @@
     <background android:drawable="@drawable/ic_launcher_background"/>
     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
     <monochrome android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
+</adaptive-icon>
diff --git a/app-nia-catalog/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app-nia-catalog/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
index 28878a729..9572fa6cb 100644
--- a/app-nia-catalog/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app-nia-catalog/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -18,4 +18,4 @@
     <background android:drawable="@drawable/ic_launcher_background"/>
     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
     <monochrome android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
+</adaptive-icon>
diff --git a/app-nia-catalog/src/main/res/values/strings.xml b/app-nia-catalog/src/main/res/values/strings.xml
index 69a3e1b11..0d92aba29 100644
--- a/app-nia-catalog/src/main/res/values/strings.xml
+++ b/app-nia-catalog/src/main/res/values/strings.xml
@@ -16,4 +16,4 @@
 -->
 <resources>
     <string name="app_name">NiA Catalog</string>
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app-nia-catalog/src/main/res/values/themes.xml b/app-nia-catalog/src/main/res/values/themes.xml
index 9aeeb83a6..afcbaf5fc 100644
--- a/app-nia-catalog/src/main/res/values/themes.xml
+++ b/app-nia-catalog/src/main/res/values/themes.xml
@@ -16,4 +16,4 @@
 -->
 <resources>
     <style name="Theme.NiaCatalog" parent="android:Theme.Material.Light.NoActionBar" />
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
index 28878a729..9572fa6cb 100644
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -18,4 +18,4 @@
     <background android:drawable="@drawable/ic_launcher_background"/>
     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
     <monochrome android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
+</adaptive-icon>
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
index 28878a729..9572fa6cb 100644
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -18,4 +18,4 @@
     <background android:drawable="@drawable/ic_launcher_background"/>
     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
     <monochrome android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
+</adaptive-icon>
diff --git a/app/src/prod/AndroidManifest.xml b/app/src/prod/AndroidManifest.xml
index 2f8a8592a..4438a1de0 100644
--- a/app/src/prod/AndroidManifest.xml
+++ b/app/src/prod/AndroidManifest.xml
@@ -23,4 +23,4 @@
             android:name="firebase_analytics_collection_deactivated"
             android:value="false" />
     </application>
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/build-logic/convention/build.gradle.kts b/build-logic/convention/build.gradle.kts
index 5faf257c1..41491da4f 100644
--- a/build-logic/convention/build.gradle.kts
+++ b/build-logic/convention/build.gradle.kts
@@ -45,6 +45,7 @@ dependencies {
     compileOnly(libs.kotlin.gradlePlugin)
     compileOnly(libs.ksp.gradlePlugin)
     compileOnly(libs.room.gradlePlugin)
+    compileOnly(libs.spotless.gradlePlugin)
     implementation(libs.truth)
     lintChecks(libs.androidx.lint.gradle)
 }
diff --git a/build-logic/convention/src/main/kotlin/AndroidApplicationComposeConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidApplicationComposeConventionPlugin.kt
index 0a33b719f..b5725e63c 100644
--- a/build-logic/convention/src/main/kotlin/AndroidApplicationComposeConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidApplicationComposeConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.ApplicationExtension
diff --git a/build-logic/convention/src/main/kotlin/AndroidApplicationConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidApplicationConventionPlugin.kt
index 8c45a056c..1dd550d87 100644
--- a/build-logic/convention/src/main/kotlin/AndroidApplicationConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidApplicationConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.ApplicationExtension
@@ -20,6 +20,7 @@ import com.google.samples.apps.nowinandroid.configureBadgingTasks
 import com.google.samples.apps.nowinandroid.configureGradleManagedDevices
 import com.google.samples.apps.nowinandroid.configureKotlinAndroid
 import com.google.samples.apps.nowinandroid.configurePrintApksTask
+import com.google.samples.apps.nowinandroid.configureSpotlessForAndroid
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.kotlin.dsl.apply
@@ -42,6 +43,7 @@ class AndroidApplicationConventionPlugin : Plugin<Project> {
                 configurePrintApksTask(this)
                 configureBadgingTasks(this)
             }
+            configureSpotlessForAndroid()
         }
     }
 }
diff --git a/build-logic/convention/src/main/kotlin/AndroidApplicationFirebaseConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidApplicationFirebaseConventionPlugin.kt
index be3ec0365..343bb2e8e 100644
--- a/build-logic/convention/src/main/kotlin/AndroidApplicationFirebaseConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidApplicationFirebaseConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.ApplicationExtension
@@ -41,7 +41,7 @@ class AndroidApplicationFirebaseConventionPlugin : Plugin<Project> {
                     datastore-proto brings in protobuf dependencies. These are the source of truth
                     for Now in Android.
                     That's why the duplicate classes from below dependencies are excluded.
-                    */
+                     */
                     exclude(group = "com.google.protobuf", module = "protobuf-javalite")
                     exclude(group = "com.google.firebase", module = "protolite-well-known-types")
                 }
diff --git a/build-logic/convention/src/main/kotlin/AndroidApplicationFlavorsConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidApplicationFlavorsConventionPlugin.kt
index 46b019d7a..6954aaae6 100644
--- a/build-logic/convention/src/main/kotlin/AndroidApplicationFlavorsConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidApplicationFlavorsConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2023 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.ApplicationExtension
@@ -28,4 +28,4 @@ class AndroidApplicationFlavorsConventionPlugin : Plugin<Project> {
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/build-logic/convention/src/main/kotlin/AndroidApplicationJacocoConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidApplicationJacocoConventionPlugin.kt
index 326d03f4f..22e25b638 100644
--- a/build-logic/convention/src/main/kotlin/AndroidApplicationJacocoConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidApplicationJacocoConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.ApplicationExtension
diff --git a/build-logic/convention/src/main/kotlin/AndroidFeatureApiConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidFeatureApiConventionPlugin.kt
index 969cf96d4..7c2b49180 100644
--- a/build-logic/convention/src/main/kotlin/AndroidFeatureApiConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidFeatureApiConventionPlugin.kt
@@ -1,20 +1,19 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
-import com.google.samples.apps.nowinandroid.libs
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.kotlin.dsl.apply
diff --git a/build-logic/convention/src/main/kotlin/AndroidFeatureImplConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidFeatureImplConventionPlugin.kt
index 500e3e983..82459e07f 100644
--- a/build-logic/convention/src/main/kotlin/AndroidFeatureImplConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidFeatureImplConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.LibraryExtension
diff --git a/build-logic/convention/src/main/kotlin/AndroidLibraryComposeConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidLibraryComposeConventionPlugin.kt
index 18cd2bd7d..10938ca37 100644
--- a/build-logic/convention/src/main/kotlin/AndroidLibraryComposeConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidLibraryComposeConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.LibraryExtension
diff --git a/build-logic/convention/src/main/kotlin/AndroidLibraryConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidLibraryConventionPlugin.kt
index ee47e823a..1f97fe8d1 100644
--- a/build-logic/convention/src/main/kotlin/AndroidLibraryConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidLibraryConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.LibraryExtension
@@ -20,6 +20,7 @@ import com.google.samples.apps.nowinandroid.configureFlavors
 import com.google.samples.apps.nowinandroid.configureGradleManagedDevices
 import com.google.samples.apps.nowinandroid.configureKotlinAndroid
 import com.google.samples.apps.nowinandroid.configurePrintApksTask
+import com.google.samples.apps.nowinandroid.configureSpotlessForAndroid
 import com.google.samples.apps.nowinandroid.disableUnnecessaryAndroidTests
 import com.google.samples.apps.nowinandroid.libs
 import org.gradle.api.Plugin
@@ -52,6 +53,7 @@ class AndroidLibraryConventionPlugin : Plugin<Project> {
                 configurePrintApksTask(this)
                 disableUnnecessaryAndroidTests(target)
             }
+            configureSpotlessForAndroid()
             dependencies {
                 "androidTestImplementation"(libs.findLibrary("kotlin.test").get())
                 "testImplementation"(libs.findLibrary("kotlin.test").get())
diff --git a/build-logic/convention/src/main/kotlin/AndroidLibraryJacocoConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidLibraryJacocoConventionPlugin.kt
index 2fd97d456..dcda1d98a 100644
--- a/build-logic/convention/src/main/kotlin/AndroidLibraryJacocoConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidLibraryJacocoConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.LibraryExtension
diff --git a/build-logic/convention/src/main/kotlin/AndroidLintConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidLintConventionPlugin.kt
index 884d6f076..c701983b1 100644
--- a/build-logic/convention/src/main/kotlin/AndroidLintConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidLintConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.ApplicationExtension
diff --git a/build-logic/convention/src/main/kotlin/AndroidRoomConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidRoomConventionPlugin.kt
index 6919b5e5d..c199914db 100644
--- a/build-logic/convention/src/main/kotlin/AndroidRoomConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidRoomConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import androidx.room.gradle.RoomExtension
diff --git a/build-logic/convention/src/main/kotlin/AndroidTestConventionPlugin.kt b/build-logic/convention/src/main/kotlin/AndroidTestConventionPlugin.kt
index 8a2f0b5a4..155889464 100644
--- a/build-logic/convention/src/main/kotlin/AndroidTestConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/AndroidTestConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.api.dsl.TestExtension
diff --git a/build-logic/convention/src/main/kotlin/HiltConventionPlugin.kt b/build-logic/convention/src/main/kotlin/HiltConventionPlugin.kt
index 82bf9f60c..938595417 100644
--- a/build-logic/convention/src/main/kotlin/HiltConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/HiltConventionPlugin.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2023 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.android.build.gradle.api.AndroidBasePlugin
diff --git a/build-logic/convention/src/main/kotlin/JvmLibraryConventionPlugin.kt b/build-logic/convention/src/main/kotlin/JvmLibraryConventionPlugin.kt
index a1477891d..f2be5c8ac 100644
--- a/build-logic/convention/src/main/kotlin/JvmLibraryConventionPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/JvmLibraryConventionPlugin.kt
@@ -1,20 +1,21 @@
 /*
  * Copyright 2023 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 import com.google.samples.apps.nowinandroid.configureKotlinJvm
+import com.google.samples.apps.nowinandroid.configureSpotlessForJvm
 import com.google.samples.apps.nowinandroid.libs
 import org.gradle.api.Plugin
 import org.gradle.api.Project
@@ -28,6 +29,7 @@ class JvmLibraryConventionPlugin : Plugin<Project> {
             apply(plugin = "nowinandroid.android.lint")
 
             configureKotlinJvm()
+            configureSpotlessForJvm()
             dependencies {
                 "testImplementation"(libs.findLibrary("kotlin.test").get())
             }
diff --git a/build-logic/convention/src/main/kotlin/RootPlugin.kt b/build-logic/convention/src/main/kotlin/RootPlugin.kt
index b704adf76..34d194443 100644
--- a/build-logic/convention/src/main/kotlin/RootPlugin.kt
+++ b/build-logic/convention/src/main/kotlin/RootPlugin.kt
@@ -15,6 +15,7 @@
  */
 
 import com.google.samples.apps.nowinandroid.configureGraphTasks
+import com.google.samples.apps.nowinandroid.configureSpotlessForRootProject
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 
@@ -22,5 +23,6 @@ class RootPlugin : Plugin<Project> {
     override fun apply(target: Project) {
         require(target.path == ":")
         target.subprojects { configureGraphTasks() }
+        target.configureSpotlessForRootProject()
     }
 }
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidInstrumentedTests.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidInstrumentedTests.kt
index c51dac5c9..9531e9caf 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidInstrumentedTests.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidInstrumentedTests.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2023 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package com.google.samples.apps.nowinandroid
@@ -30,6 +30,6 @@ import org.gradle.api.Project
 internal fun LibraryAndroidComponentsExtension.disableUnnecessaryAndroidTests(
     project: Project,
 ) = beforeVariants {
-    it.androidTest.enable = it.androidTest.enable
-        && project.projectDir.resolve("src/androidTest").exists()
+    it.androidTest.enable = it.androidTest.enable &&
+        project.projectDir.resolve("src/androidTest").exists()
 }
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Badging.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Badging.kt
index e747325ee..803ee00e7 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Badging.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Badging.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2023 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package com.google.samples.apps.nowinandroid
@@ -123,7 +123,6 @@ fun Project.configureBadgingTasks(
                 badging = project.layout.buildDirectory.file(
                     "outputs/apk_from_bundle/${variant.name}/${variant.name}-badging.txt",
                 )
-
             }
 
         val updateBadgingTaskName = "update${capitalizedVariantName}Badging"
@@ -141,7 +140,6 @@ fun Project.configureBadgingTasks(
             this.updateBadgingTaskName = updateBadgingTaskName
 
             output = project.layout.buildDirectory.dir("intermediates/$checkBadgingTaskName")
-
         }
     }
 }
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/GradleManagedDevices.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/GradleManagedDevices.kt
index 992a3f91e..548df4c2f 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/GradleManagedDevices.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/GradleManagedDevices.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2023 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package com.google.samples.apps.nowinandroid
@@ -34,7 +34,6 @@ internal fun configureGradleManagedDevices(
     val allDevices = listOf(pixel4, pixel6, pixelC)
     val ciDevices = listOf(pixel4, pixelC)
 
-
     commonExtension.testOptions.apply {
         @Suppress("UnstableApiUsage")
         managedDevices {
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Jacoco.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Jacoco.kt
index 8d16c428e..096808c60 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Jacoco.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Jacoco.kt
@@ -17,12 +17,10 @@
 package com.google.samples.apps.nowinandroid
 
 import com.android.build.api.artifact.ScopedArtifact
-import com.android.build.api.dsl.BuildType
 import com.android.build.api.dsl.CommonExtension
 import com.android.build.api.variant.AndroidComponentsExtension
 import com.android.build.api.variant.ScopedArtifacts
 import com.android.build.api.variant.SourceDirectories
-import org.gradle.api.NamedDomainObjectContainer
 import org.gradle.api.Project
 import org.gradle.api.file.Directory
 import org.gradle.api.file.RegularFile
@@ -86,7 +84,6 @@ internal fun Project.configureJacoco(
                 "create${variant.name.capitalize()}CombinedCoverageReport",
                 JacocoReport::class,
             ) {
-
                 classDirectories.setFrom(
                     allJars,
                     allDirectories.map { dirs ->
@@ -107,7 +104,7 @@ internal fun Project.configureJacoco(
                 sourceDirectories.setFrom(
                     files(
                         variant.sources.java.toFilePaths(),
-                        variant.sources.kotlin.toFilePaths()
+                        variant.sources.kotlin.toFilePaths(),
                     ),
                 )
 
@@ -120,7 +117,6 @@ internal fun Project.configureJacoco(
                 )
             }
 
-
         variant.artifacts.forScope(ScopedArtifacts.Scope.PROJECT)
             .use(reportTask)
             .toGet(
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/KotlinAndroid.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/KotlinAndroid.kt
index 37b1ba99b..7ee7b0e90 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/KotlinAndroid.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/KotlinAndroid.kt
@@ -103,7 +103,7 @@ private inline fun <reified T : KotlinBaseExtension> Project.configureKotlin() =
              * The binary signature changes. The error on the declaration is no longer reported.
              * '-Xconsistent-data-class-copy-visibility' compiler flag and ConsistentCopyVisibility annotation are now unnecessary.
              */
-            "-Xconsistent-data-class-copy-visibility"
+            "-Xconsistent-data-class-copy-visibility",
         )
     }
 }
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/NiaBuildType.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/NiaBuildType.kt
index e4f40840d..f4d6f038b 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/NiaBuildType.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/NiaBuildType.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package com.google.samples.apps.nowinandroid
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/NiaFlavor.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/NiaFlavor.kt
index 96ca6073d..a294c0c51 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/NiaFlavor.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/NiaFlavor.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2026 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.google.samples.apps.nowinandroid
 
 import com.android.build.api.dsl.ApplicationExtension
@@ -8,7 +24,7 @@ import org.gradle.kotlin.dsl.invoke
 
 @Suppress("EnumEntryName")
 enum class FlavorDimension {
-    contentType
+    contentType,
 }
 
 // The content for the app can either come from local static data which is useful for demo
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/PrintTestApks.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/PrintTestApks.kt
index 271fc51b7..e2a96eedf 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/PrintTestApks.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/PrintTestApks.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2022 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package com.google.samples.apps.nowinandroid
@@ -49,7 +49,9 @@ internal fun Project.configurePrintApksTask(extension: AndroidComponentsExtensio
                 javaSources.zip(kotlinSources) { javaDirs, kotlinDirs ->
                     javaDirs + kotlinDirs
                 }
-            } else javaSources ?: kotlinSources
+            } else {
+                javaSources ?: kotlinSources
+            }
 
             if (artifact != null && testSources != null) {
                 tasks.register(
@@ -96,8 +98,9 @@ internal abstract class PrintApkLocationTask : DefaultTask() {
 
         val builtArtifacts = builtArtifactsLoader.get().load(apkFolder.get())
             ?: throw RuntimeException("Cannot load APKs")
-        if (builtArtifacts.elements.size != 1)
+        if (builtArtifacts.elements.size != 1) {
             throw RuntimeException("Expected one APK !")
+        }
         val apk = File(builtArtifacts.elements.single().outputFile).toPath()
         println(apk)
     }
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/ProjectExtensions.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/ProjectExtensions.kt
index e45d7f2e1..8bf6e1dfe 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/ProjectExtensions.kt
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/ProjectExtensions.kt
@@ -1,17 +1,17 @@
 /*
  * Copyright 2023 The Android Open Source Project
  *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *       https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package com.google.samples.apps.nowinandroid
diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Spotless.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Spotless.kt
new file mode 100644
index 000000000..3d4ac8f3e
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Spotless.kt
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2026 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.samples.apps.nowinandroid
+
+import com.diffplug.gradle.spotless.SpotlessExtension
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.apply
+import org.gradle.kotlin.dsl.configure
+
+internal fun Project.configureSpotlessForAndroid() {
+    configureSpotlessCommon()
+    extensions.configure<SpotlessExtension> {
+        format("xml") {
+            target("src/**/*.xml")
+            // Look for the first XML tag that isn't a comment (<!--) or the xml declaration (<?xml)
+            licenseHeaderFile(rootDir.resolve("spotless/copyright.xml"), "(<[^!?])")
+            endWithNewline()
+        }
+    }
+}
+
+internal fun Project.configureSpotlessForJvm() {
+    configureSpotlessCommon()
+}
+
+internal fun Project.configureSpotlessForRootProject() {
+    apply(plugin = "com.diffplug.spotless")
+    extensions.configure<SpotlessExtension> {
+        kotlin {
+            target("build-logic/convention/src/**/*.kt")
+            ktlint(libs.findVersion("ktlint").get().requiredVersion).editorConfigOverride(
+                mapOf("android" to "true"),
+            )
+            licenseHeaderFile(rootDir.resolve("spotless/copyright.kt"))
+            endWithNewline()
+        }
+        format("kts") {
+            target("*.kts")
+            target("build-logic/*.kts")
+            target("build-logic/convention/*.kts")
+            // Look for the first line that doesn't have a block comment (assumed to be the license)
+            licenseHeaderFile(rootDir.resolve("spotless/copyright.kts"), "(^(?![\\/ ]\\*).*$)")
+            endWithNewline()
+        }
+    }
+}
+
+private fun Project.configureSpotlessCommon() {
+    apply(plugin = "com.diffplug.spotless")
+    extensions.configure<SpotlessExtension> {
+        kotlin {
+            target("src/**/*.kt")
+            ktlint(libs.findVersion("ktlint").get().requiredVersion).editorConfigOverride(
+                mapOf("android" to "true"),
+            )
+            licenseHeaderFile(rootDir.resolve("spotless/copyright.kt"))
+            endWithNewline()
+        }
+        format("kts") {
+            target("*.kts")
+            // Look for the first line that doesn't have a block comment (assumed to be the license)
+            licenseHeaderFile(rootDir.resolve("spotless/copyright.kts"), "(^(?![\\/ ]\\*).*$)")
+            endWithNewline()
+        }
+    }
+}
diff --git a/build.gradle.kts b/build.gradle.kts
index 594f7f92e..3096d6bda 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -38,5 +38,6 @@ plugins {
     alias(libs.plugins.roborazzi) apply false
     alias(libs.plugins.google.osslicenses) apply false
     alias(libs.plugins.room) apply false
+    alias(libs.plugins.spotless) apply false
     alias(libs.plugins.nowinandroid.root)
 }
diff --git a/core/analytics/src/main/AndroidManifest.xml b/core/analytics/src/main/AndroidManifest.xml
index a522a4c23..312b22fd3 100644
--- a/core/analytics/src/main/AndroidManifest.xml
+++ b/core/analytics/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/core/common/build.gradle.kts b/core/common/build.gradle.kts
index f1aa9771c..e71b9dc8e 100644
--- a/core/common/build.gradle.kts
+++ b/core/common/build.gradle.kts
@@ -22,4 +22,4 @@ dependencies {
     implementation(libs.kotlinx.coroutines.core)
     testImplementation(libs.kotlinx.coroutines.test)
     testImplementation(libs.turbine)
-}
\ No newline at end of file
+}
diff --git a/core/data/src/main/AndroidManifest.xml b/core/data/src/main/AndroidManifest.xml
index a5c595622..50b72ebf5 100644
--- a/core/data/src/main/AndroidManifest.xml
+++ b/core/data/src/main/AndroidManifest.xml
@@ -16,4 +16,4 @@
 -->
 <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
+</manifest>
diff --git a/core/database/src/main/AndroidManifest.xml b/core/database/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/core/database/src/main/AndroidManifest.xml
+++ b/core/database/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/core/datastore-test/src/main/AndroidManifest.xml b/core/datastore-test/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/core/datastore-test/src/main/AndroidManifest.xml
+++ b/core/datastore-test/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/core/datastore/src/main/AndroidManifest.xml b/core/datastore/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/core/datastore/src/main/AndroidManifest.xml
+++ b/core/datastore/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/core/designsystem/src/main/AndroidManifest.xml b/core/designsystem/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/core/designsystem/src/main/AndroidManifest.xml
+++ b/core/designsystem/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/core/domain/build.gradle.kts b/core/domain/build.gradle.kts
index 191877459..728f8758a 100644
--- a/core/domain/build.gradle.kts
+++ b/core/domain/build.gradle.kts
@@ -30,4 +30,4 @@ dependencies {
     implementation(libs.javax.inject)
 
     testImplementation(projects.core.testing)
-}
\ No newline at end of file
+}
diff --git a/core/domain/src/main/AndroidManifest.xml b/core/domain/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/core/domain/src/main/AndroidManifest.xml
+++ b/core/domain/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/core/network/src/main/AndroidManifest.xml b/core/network/src/main/AndroidManifest.xml
index 0cb50fd30..7d11a6f1b 100644
--- a/core/network/src/main/AndroidManifest.xml
+++ b/core/network/src/main/AndroidManifest.xml
@@ -17,4 +17,4 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <uses-permission android:name="android.permission.INTERNET" />
 
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/core/notifications/src/main/res/drawable-anydpi-v24/core_notifications_ic_nia_notification.xml b/core/notifications/src/main/res/drawable-anydpi-v24/core_notifications_ic_nia_notification.xml
index 8037f9089..243238250 100644
--- a/core/notifications/src/main/res/drawable-anydpi-v24/core_notifications_ic_nia_notification.xml
+++ b/core/notifications/src/main/res/drawable-anydpi-v24/core_notifications_ic_nia_notification.xml
@@ -28,4 +28,4 @@
           android:pathData="M17.6,11.48 L19.44,8.3a0.63,0.63 0,0 0,-1.09 -0.63l-1.88,3.24a11.43,11.43 0,0 0,-8.94 0L5.65,7.67a0.63,0.63 0,0 0,-1.09 0.63L6.4,11.48A10.81,10.81 0,0 0,1 20L23,20A10.81,10.81 0,0 0,17.6 11.48ZM7,17.25A1.25,1.25 0,1 1,8.25 16,1.25 1.25,0 0,1 7,17.25ZM17,17.25A1.25,1.25 0,1 1,18.25 16,1.25 1.25,0 0,1 17,17.25Z"
           android:fillColor="#FF000000"/>
   </group>
-</vector>
\ No newline at end of file
+</vector>
diff --git a/core/screenshot-testing/src/main/AndroidManifest.xml b/core/screenshot-testing/src/main/AndroidManifest.xml
index 5952f8bfd..59ed4cb48 100644
--- a/core/screenshot-testing/src/main/AndroidManifest.xml
+++ b/core/screenshot-testing/src/main/AndroidManifest.xml
@@ -21,4 +21,4 @@
     Theme_Material_Light_NoActionBar is the base theme used by the production app.
     -->
     <application android:theme="@android:style/Theme.Material.NoActionBar" />
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/core/testing/src/main/AndroidManifest.xml b/core/testing/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/core/testing/src/main/AndroidManifest.xml
+++ b/core/testing/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/core/ui/src/main/AndroidManifest.xml b/core/ui/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/core/ui/src/main/AndroidManifest.xml
+++ b/core/ui/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/feature/bookmarks/api/build.gradle.kts b/feature/bookmarks/api/build.gradle.kts
index a51468615..2dc2a3f95 100644
--- a/feature/bookmarks/api/build.gradle.kts
+++ b/feature/bookmarks/api/build.gradle.kts
@@ -20,4 +20,4 @@ plugins {
 
 android {
     namespace = "com.google.samples.apps.nowinandroid.feature.bookmarks.api"
-}
\ No newline at end of file
+}
diff --git a/feature/bookmarks/impl/src/main/AndroidManifest.xml b/feature/bookmarks/impl/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/feature/bookmarks/impl/src/main/AndroidManifest.xml
+++ b/feature/bookmarks/impl/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/feature/foryou/api/src/main/AndroidManifest.xml b/feature/foryou/api/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/feature/foryou/api/src/main/AndroidManifest.xml
+++ b/feature/foryou/api/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/feature/foryou/api/src/main/res/values/strings.xml b/feature/foryou/api/src/main/res/values/strings.xml
index f0595944f..cb4297c35 100644
--- a/feature/foryou/api/src/main/res/values/strings.xml
+++ b/feature/foryou/api/src/main/res/values/strings.xml
@@ -21,4 +21,4 @@
     <string name="feature_foryou_api_navigate_up">Navigate up</string>
     <string name="feature_foryou_api_onboarding_guidance_title">What are you interested in?</string>
     <string name="feature_foryou_api_onboarding_guidance_subtitle">Updates from topics you follow will appear here. Follow some things to get started.</string>
-</resources>
\ No newline at end of file
+</resources>
diff --git a/feature/foryou/impl/build.gradle.kts b/feature/foryou/impl/build.gradle.kts
index 7964f8c4f..b8115d292 100644
--- a/feature/foryou/impl/build.gradle.kts
+++ b/feature/foryou/impl/build.gradle.kts
@@ -40,4 +40,4 @@ dependencies {
 
     androidTestImplementation(libs.bundles.androidx.compose.ui.test)
     androidTestImplementation(projects.core.testing)
-}
\ No newline at end of file
+}
diff --git a/feature/interests/api/build.gradle.kts b/feature/interests/api/build.gradle.kts
index 7a2dfd65e..19c5db14c 100644
--- a/feature/interests/api/build.gradle.kts
+++ b/feature/interests/api/build.gradle.kts
@@ -20,4 +20,4 @@ plugins {
 
 android {
     namespace = "com.google.samples.apps.nowinandroid.feature.interests.api"
-}
\ No newline at end of file
+}
diff --git a/feature/interests/api/src/main/AndroidManifest.xml b/feature/interests/api/src/main/AndroidManifest.xml
index 51d0cfc2e..27a3ea8b0 100644
--- a/feature/interests/api/src/main/AndroidManifest.xml
+++ b/feature/interests/api/src/main/AndroidManifest.xml
@@ -14,4 +14,4 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<manifest />
\ No newline at end of file
+<manifest />
diff --git a/feature/interests/api/src/main/res/drawable/feature_interests_api_ic_detail_placeholder.xml b/feature/interests/api/src/main/res/drawable/feature_interests_api_ic_detail_placeholder.xml
index 2789b54e6..0518401da 100644
--- a/feature/interests/api/src/main/res/drawable/feature_interests_api_ic_detail_placeholder.xml
+++ b/feature/interests/api/src/main/res/drawable/feature_interests_api_ic_detail_placeholder.xml
@@ -52,4 +52,4 @@
         android:strokeColor="#8C4190"
         android:strokeLineCap="round"
         android:strokeWidth="2" />
-</vector>
\ No newline at end of file
+</vector>
diff --git a/feature/search/api/build.gradle.kts b/feature/search/api/build.gradle.kts
index d7ea6fc5f..a46189b1e 100644
--- a/feature/search/api/build.gradle.kts
+++ b/feature/search/api/build.gradle.kts
@@ -25,4 +25,3 @@ android {
 dependencies {
     implementation(projects.core.domain)
 }
-
diff --git a/feature/search/impl/build.gradle.kts b/feature/search/impl/build.gradle.kts
index 8425b29f3..a33b941c4 100644
--- a/feature/search/impl/build.gradle.kts
+++ b/feature/search/impl/build.gradle.kts
@@ -34,4 +34,4 @@ dependencies {
 
     androidTestImplementation(libs.bundles.androidx.compose.ui.test)
     androidTestImplementation(projects.core.testing)
-}
\ No newline at end of file
+}
diff --git a/feature/topic/api/build.gradle.kts b/feature/topic/api/build.gradle.kts
index 923a9b38b..97bed820a 100644
--- a/feature/topic/api/build.gradle.kts
+++ b/feature/topic/api/build.gradle.kts
@@ -22,4 +22,4 @@ plugins {
 
 android {
     namespace = "com.google.samples.apps.nowinandroid.feature.topic.api"
-}
\ No newline at end of file
+}
diff --git a/feature/topic/impl/build.gradle.kts b/feature/topic/impl/build.gradle.kts
index fdf37c32e..0e895722a 100644
--- a/feature/topic/impl/build.gradle.kts
+++ b/feature/topic/impl/build.gradle.kts
@@ -35,4 +35,4 @@ dependencies {
 
     androidTestImplementation(libs.bundles.androidx.compose.ui.test)
     androidTestImplementation(projects.core.testing)
-}
\ No newline at end of file
+}
diff --git a/gradle/init.gradle.kts b/gradle/init.gradle.kts
deleted file mode 100644
index 44dc41200..000000000
--- a/gradle/init.gradle.kts
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2022 The Android Open Source Project
- *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
- *
- *       https://www.apache.org/licenses/LICENSE-2.0
- *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
- */
-
-val ktlintVersion = "1.4.0"
-
-initscript {
-    val spotlessVersion = "6.25.0"
-
-    repositories {
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath("com.diffplug.spotless:spotless-plugin-gradle:$spotlessVersion")
-    }
-}
-
-rootProject {
-    subprojects {
-        apply<com.diffplug.gradle.spotless.SpotlessPlugin>()
-        extensions.configure<com.diffplug.gradle.spotless.SpotlessExtension> {
-            kotlin {
-                target("**/*.kt")
-                targetExclude("**/build/**/*.kt")
-                ktlint(ktlintVersion).editorConfigOverride(
-                    mapOf(
-                        "android" to "true",
-                    ),
-                )
-                licenseHeaderFile(rootProject.file("spotless/copyright.kt"))
-            }
-            format("kts") {
-                target("**/*.kts")
-                targetExclude("**/build/**/*.kts")
-                // Look for the first line that doesn't have a block comment (assumed to be the license)
-                licenseHeaderFile(rootProject.file("spotless/copyright.kts"), "(^(?![\\/ ]\\*).*$)")
-            }
-            format("xml") {
-                target("**/*.xml")
-                targetExclude("**/build/**/*.xml")
-                // Look for the first XML tag that isn't a comment (<!--) or the xml declaration (<?xml)
-                licenseHeaderFile(rootProject.file("spotless/copyright.xml"), "(<[^!?])")
-            }
-        }
-    }
-}
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index f6dd9379d..fbe070c1a 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -51,6 +51,7 @@ kotlinxCoroutines = "1.10.1"
 kotlinxDatetime = "0.6.1"
 kotlinxSerializationJson = "1.8.0"
 ksp = "2.3.4"
+ktlint = "1.4.0"
 okhttp = "4.12.0"
 protobuf = "4.29.2"
 protobufPlugin = "0.9.6"
@@ -59,6 +60,7 @@ retrofitKotlinxSerializationJson = "1.0.0"
 robolectric = "4.16"
 roborazzi = "1.56.0"
 room = "2.8.3"
+spotless = "8.2.1"
 truth = "1.4.4"
 turbine = "1.2.0"
 uiTestJunit4 = "1.9.0-rc01"
@@ -171,6 +173,7 @@ kotlin-gradlePlugin = { group = "org.jetbrains.kotlin", name = "kotlin-gradle-pl
 ksp-gradlePlugin = { group = "com.google.devtools.ksp", name = "com.google.devtools.ksp.gradle.plugin", version.ref = "ksp" }
 room-gradlePlugin = { group = "androidx.room", name = "room-gradle-plugin", version.ref = "room" }
 androidx-compose-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4", version.ref = "uiTestJunit4" }
+spotless-gradlePlugin = { group = "com.diffplug.spotless", name = "spotless-plugin-gradle", version.ref = "spotless" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "androidGradlePlugin" }
@@ -191,6 +194,7 @@ google-osslicenses = { id = "com.google.android.gms.oss-licenses-plugin", versio
 protobuf = { id = "com.google.protobuf", version.ref = "protobufPlugin" }
 roborazzi = { id = "io.github.takahirom.roborazzi", version.ref = "roborazzi" }
 room = { id = "androidx.room", version.ref = "room" }
+spotless = { id = "com.diffplug.spotless", version.ref = "spotless" }
 
 # Plugins defined by this project
 nowinandroid-android-application = { id = "nowinandroid.android.application" }
diff --git a/tools/pre-push b/tools/pre-push
index 81157f9ca..5d340b635 100644
--- a/tools/pre-push
+++ b/tools/pre-push
@@ -88,7 +88,7 @@ done
 if [[ -n "$run_checks" ]]; then
   # pre-push usually executes in the repository root, but just to be safe...
   cd "$(git rev-parse --show-toplevel)"
-  ./gradlew --init-script gradle/init.gradle.kts --no-configuration-cache check
+  ./gradlew check
   exit $?
 fi
 
diff --git a/ui-test-hilt-manifest/src/main/AndroidManifest.xml b/ui-test-hilt-manifest/src/main/AndroidManifest.xml
index d35bfe1e2..effeb7305 100644
--- a/ui-test-hilt-manifest/src/main/AndroidManifest.xml
+++ b/ui-test-hilt-manifest/src/main/AndroidManifest.xml
@@ -27,4 +27,4 @@
             />
     </application>
 
-</manifest>
\ No newline at end of file
+</manifest>