diff --git a/app-compose/build.gradle b/app-compose/build.gradle
index ee52e8ff8..85ac7ee8c 100644
--- a/app-compose/build.gradle
+++ b/app-compose/build.gradle
@@ -6,6 +6,8 @@ plugins {
     id "com.google.devtools.ksp"
 }
 
+apply from: '../spotless.gradle'
+
 android {
     compileSdk 33
 
diff --git a/app-compose/src/main/kotlin/com/pitchedapps/frost/FrostApp.kt b/app-compose/src/main/kotlin/com/pitchedapps/frost/FrostApp.kt
index 20fdc49f4..585731ef4 100644
--- a/app-compose/src/main/kotlin/com/pitchedapps/frost/FrostApp.kt
+++ b/app-compose/src/main/kotlin/com/pitchedapps/frost/FrostApp.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Allan Wang
+ * Copyright 2023 Allan Wang
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,11 +19,8 @@ package com.pitchedapps.frost
 import android.app.Activity
 import android.app.Application
 import android.os.Bundle
-import android.util.Log
 import com.google.common.flogger.FluentLogger
 import dagger.hilt.android.HiltAndroidApp
-import java.util.Random
-import javax.inject.Inject
 
 @HiltAndroidApp
 class FrostApp : Application() {
@@ -35,7 +32,9 @@ class FrostApp : Application() {
       registerActivityLifecycleCallbacks(
         object : ActivityLifecycleCallbacks {
           override fun onActivityPaused(activity: Activity) {}
+
           override fun onActivityResumed(activity: Activity) {}
+
           override fun onActivityStarted(activity: Activity) {}
 
           override fun onActivityDestroyed(activity: Activity) {
diff --git a/app-compose/src/main/kotlin/com/pitchedapps/frost/StartActivity.kt b/app-compose/src/main/kotlin/com/pitchedapps/frost/StartActivity.kt
index a483aeab8..1a27ef8f1 100644
--- a/app-compose/src/main/kotlin/com/pitchedapps/frost/StartActivity.kt
+++ b/app-compose/src/main/kotlin/com/pitchedapps/frost/StartActivity.kt
@@ -1,8 +1,22 @@
+/*
+ * Copyright 2023 Allan Wang
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.pitchedapps.frost
 
 import androidx.appcompat.app.AppCompatActivity
 import dagger.hilt.android.AndroidEntryPoint
 
-@AndroidEntryPoint
-class StartActivity : AppCompatActivity() {
-}
+@AndroidEntryPoint class StartActivity : AppCompatActivity() {}
diff --git a/build.gradle b/build.gradle
index 5141d2997..deab326c1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,6 +11,7 @@ plugins {
     id 'org.jetbrains.kotlin.android' version '1.8.21' apply false
     // https://mvnrepository.com/artifact/com.google.devtools.ksp/com.google.devtools.ksp.gradle.plugin
     id 'com.google.devtools.ksp' version '1.8.21-1.0.11' apply false
+    id 'com.diffplug.spotless' version '6.19.0' apply false
 }
 
 tasks.register('clean', Delete) {
diff --git a/gradle.properties b/gradle.properties
index 14663b9aa..af0dcf3a4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -6,7 +6,7 @@
 # http://www.gradle.org/docs/current/userguide/build_environment.html
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
-org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
@@ -19,4 +19,11 @@ APP_GROUP=com.pitchedapps
 KAU=00595a89
 
 android.useAndroidX=true
-android.enableJetifier=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
+android.defaults.buildfeatures.buildconfig=true
+android.nonFinalResIds=false
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 3ffebc84b..ff9ef3c44 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-all.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/spotless.gradle b/spotless.gradle
index 1f31b7912..603ea645b 100644
--- a/spotless.gradle
+++ b/spotless.gradle
@@ -3,7 +3,7 @@ apply plugin: "com.diffplug.spotless"
 spotless {
     kotlin {
         target "**/*.kt"
-        ktfmt(kau.Versions.ktfmt).googleStyle()
+        ktfmt().googleStyle()
         licenseHeaderFile '../spotless.license.kt'
         trimTrailingWhitespace()
         endWithNewline()