diff --git a/app/build.gradle b/app/build.gradle
deleted file mode 100644
index c193ae0350..0000000000
--- a/app/build.gradle
+++ /dev/null
@@ -1,131 +0,0 @@
-plugins {
-    id 'com.android.application'
-    id 'org.jetbrains.kotlin.android'
-    id 'com.google.devtools.ksp' version '1.7.20-1.0.7'
-    id 'com.google.firebase.appdistribution' version '3.0.2'
-}
-
-android {
-    namespace 'io.element.android.x'
-    compileSdk 33
-
-    defaultConfig {
-        applicationId "io.element.android.x"
-        minSdk 29
-        targetSdk 33
-        versionCode 1
-        versionName "1.0"
-
-        vectorDrawables {
-            useSupportLibrary true
-        }
-    }
-
-    signingConfigs {
-        debug {
-            keyAlias 'androiddebugkey'
-            keyPassword 'android'
-            storeFile file('./signature/debug.keystore')
-            storePassword 'android'
-        }
-        nightly {
-            keyAlias System.env.ELEMENT_ANDROID_NIGHTLY_KEYID ?: project.property("signing.element.nightly.keyId")
-            keyPassword System.env.ELEMENT_ANDROID_NIGHTLY_KEYPASSWORD ?: project.property("signing.element.nightly.keyPassword")
-            storeFile file('./signature/nightly.keystore')
-            storePassword System.env.ELEMENT_ANDROID_NIGHTLY_STOREPASSWORD ?: project.property("signing.element.nightly.storePassword")
-        }
-    }
-
-    buildTypes {
-        debug {
-            resValue "string", "app_name", "ElementX dbg"
-            applicationIdSuffix ".debug"
-            signingConfig signingConfigs.debug
-        }
-
-        release {
-            resValue "string", "app_name", "ElementX"
-            signingConfig signingConfigs.debug
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
-        }
-
-        nightly {
-            initWith release
-            applicationIdSuffix ".nightly"
-            versionNameSuffix "-nightly"
-            resValue "string", "app_name", "ElementX nightly"
-            matchingFallbacks = ['release']
-            signingConfig signingConfigs.nightly
-            firebaseAppDistribution {
-                artifactType = "APK"
-                // releaseNotesFile = TODO
-                groups = "external-testers"
-                // This should not be required, but if I do not add the appId, I get this error:
-                // "App Distribution halted because it had a problem uploading the APK: [404] Requested entity was not found."
-                appId = "1:912726360885:android:e17435e0beb0303000427c"
-            }
-        }
-
-    }
-    compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
-    }
-    kotlinOptions {
-        jvmTarget = '1.8'
-    }
-    buildFeatures {
-        compose true
-    }
-    composeOptions {
-        kotlinCompilerExtensionVersion "1.3.2"
-    }
-    packagingOptions {
-        resources {
-            excludes += '/META-INF/{AL2.0,LGPL2.1}'
-        }
-    }
-
-    applicationVariants.all { variant ->
-        kotlin.sourceSets {
-            getByName(variant.name) {
-                kotlin.srcDir("build/generated/ksp/${variant.name}/kotlin")
-            }
-        }
-    }
-}
-
-dependencies {
-    implementation project(":libraries:designsystem")
-    implementation project(":libraries:matrix")
-    implementation project(":libraries:core")
-    implementation project(":features:onboarding")
-    implementation project(":features:login")
-    implementation project(":features:roomlist")
-    implementation project(":features:messages")
-
-    coreLibraryDesugaring "com.android.tools:desugar_jdk_libs:1.2.0"
-    implementation 'io.github.raamcosta.compose-destinations:animations-core:1.7.23-beta'
-    ksp 'io.github.raamcosta.compose-destinations:ksp:1.7.23-beta'
-
-    def composeBom = platform('androidx.compose:compose-bom:2022.11.00')
-    implementation composeBom
-    androidTestImplementation composeBom
-
-    implementation 'androidx.core:core-ktx:1.9.0'
-    implementation "androidx.compose.ui:ui"
-    implementation 'androidx.compose.material3:material3'
-    implementation "androidx.compose.ui:ui-tooling-preview"
-    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.5.1'
-    implementation 'androidx.activity:activity-compose:1.6.1'
-    implementation 'androidx.lifecycle:lifecycle-viewmodel-compose:2.5.1'
-    implementation 'io.coil-kt:coil:2.2.1'
-    implementation 'com.jakewharton.timber:timber:5.0.1'
-    debugImplementation "androidx.compose.ui:ui-tooling"
-    debugImplementation "androidx.compose.ui:ui-test-manifest"
-    implementation 'com.airbnb.android:mavericks-compose:3.0.1'
-
-    implementation("com.airbnb.android:showkase:1.0.0-beta14")
-    ksp("com.airbnb.android:showkase-processor:1.0.0-beta14")
-}
\ No newline at end of file
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
new file mode 100644
index 0000000000..6d2868b2e7
--- /dev/null
+++ b/app/build.gradle.kts
@@ -0,0 +1,141 @@
+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+    id("com.google.devtools.ksp") version "1.7.20-1.0.7"
+    id("com.google.firebase.appdistribution") version "3.0.2"
+}
+
+android {
+    namespace = "io.element.android.x"
+    compileSdk = 33
+
+    defaultConfig {
+        applicationId = "io.element.android.x"
+        minSdk = 29
+        targetSdk = 33
+        versionCode = 1
+        versionName = "1.0"
+
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    signingConfigs {
+        named("debug") {
+            keyAlias = "androiddebugkey"
+            keyPassword = "android"
+            storeFile = file("./signature/debug.keystore")
+            storePassword = "android"
+        }
+        register("nightly") {
+            keyAlias = System.getenv("ELEMENT_ANDROID_NIGHTLY_KEYID")
+                ?: project.property("signing.element.nightly.keyId") as? String?
+            keyPassword = System.getenv("ELEMENT_ANDROID_NIGHTLY_KEYPASSWORD")
+                ?: project.property("signing.element.nightly.keyPassword") as? String?
+            storeFile = file("./signature/nightly.keystore")
+            storePassword = System.getenv("ELEMENT_ANDROID_NIGHTLY_STOREPASSWORD")
+                ?: project.property("signing.element.nightly.storePassword") as? String?
+        }
+    }
+
+    buildTypes {
+        named("debug") {
+            resValue("string", "app_name", "ElementX dbg")
+            applicationIdSuffix = ".debug"
+            signingConfig = signingConfigs.getByName("debug")
+        }
+
+        named("release") {
+            resValue("string", "app_name", "ElementX")
+            signingConfig = signingConfigs.getByName("debug")
+            isMinifyEnabled = false
+            setProguardFiles(
+                listOf(
+                    getDefaultProguardFile("proguard-android-optimize.txt"),
+                    "proguard-rules.pro"
+                )
+            )
+        }
+
+        register("nightly") {
+            initWith(getByName("release"))
+            applicationIdSuffix = ".nightly"
+            versionNameSuffix = "-nightly"
+            resValue("string", "app_name", "ElementX nightly")
+            matchingFallbacks += listOf("release")
+            signingConfig = signingConfigs.getByName("nightly")
+
+            firebaseAppDistribution {
+                artifactType = "APK"
+                // releaseNotesFile = TODO
+                groups = "external-testers"
+                // This should not be required, but if I do not add the appId, I get this error:
+                // "App Distribution halted because it had a problem uploading the APK: [404] Requested entity was not found."
+                appId = "1:912726360885:android:e17435e0beb0303000427c"
+            }
+        }
+
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+    buildFeatures {
+        compose = true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.3.2"
+    }
+    packagingOptions {
+        resources {
+            excludes += "/META-INF/{AL2.0,LGPL2.1}"
+        }
+    }
+
+    kotlin {
+        sourceSets.main {
+            kotlin.srcDir("build/generated/ksp/main/kotlin")
+        }
+        sourceSets.test {
+            kotlin.srcDir("build/generated/ksp/test/kotlin")
+        }
+    }
+}
+
+dependencies {
+    implementation(project(":libraries:designsystem"))
+    implementation(project(":libraries:matrix"))
+    implementation(project(":libraries:core"))
+    implementation(project(":features:onboarding"))
+    implementation(project(":features:login"))
+    implementation(project(":features:roomlist"))
+    implementation(project(":features:messages"))
+
+    coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:1.2.0")
+    implementation("io.github.raamcosta.compose-destinations:animations-core:1.7.23-beta")
+    ksp("io.github.raamcosta.compose-destinations:ksp:1.7.23-beta")
+
+    val composeBom = platform("androidx.compose:compose-bom:2022.11.00")
+    implementation(composeBom)
+    androidTestImplementation(composeBom)
+
+    implementation("androidx.core:core-ktx:1.9.0")
+    implementation("androidx.compose.ui:ui")
+    implementation("androidx.compose.material3:material3")
+    implementation("androidx.compose.ui:ui-tooling-preview")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.5.1")
+    implementation("androidx.activity:activity-compose:1.6.1")
+    implementation("androidx.lifecycle:lifecycle-viewmodel-compose:2.5.1")
+    implementation("io.coil-kt:coil:2.2.1")
+    implementation("com.jakewharton.timber:timber:5.0.1")
+    debugImplementation("androidx.compose.ui:ui-tooling")
+    debugImplementation("androidx.compose.ui:ui-test-manifest")
+    implementation("com.airbnb.android:mavericks-compose:3.0.1")
+
+    implementation("com.airbnb.android:showkase:1.0.0-beta14")
+    ksp("com.airbnb.android:showkase-processor:1.0.0-beta14")
+}
\ No newline at end of file