new: integrate Google Services for app distribution

.gitignore

@@ -21,3 +21,6 @@ node_modules/
 # Media assets (audio .m4a + subtitle .lrc) — large/licensed, kept out of Version Control.
 *.m4a
 *.lrc
+
+# Firebase config (App Distribution) — per-developer, not tracked (see google-services.example.json)
+androidApp/google-services.json

androidApp/build.gradle.kts

@@ -4,6 +4,14 @@ plugins {
     alias(libs.plugins.androidApplication)
     alias(libs.plugins.composeMultiplatform)
     alias(libs.plugins.composeCompiler)
+    // Used for App Distribution
+    alias(libs.plugins.googleServices) apply false
+}
+
+// Apply Google Services only when the Firebase config is present: google-services.json is not
+// tracked in git (see google-services.example.json), so builds must work without it.
+if (file("google-services.json").exists()) {
+    apply(plugin = libs.plugins.googleServices.get().pluginId)
 }
 
 kotlin {

androidApp/google-services.example.json

@@ -0,0 +1,29 @@
+{
+  "project_info": {
+    "project_number": "000000000000",
+    "project_id": "your-firebase-project-id",
+    "storage_bucket": "your-firebase-project-id.firebasestorage.app"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:000000000000:android:0000000000000000000000",
+        "android_client_info": {
+          "package_name": "bzh.ajaury.chombev"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "YOUR_FIREBASE_API_KEY"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

build.gradle.kts

@@ -7,4 +7,5 @@ plugins {
     alias(libs.plugins.composeCompiler) apply false
     alias(libs.plugins.kotlinJvm) apply false
     alias(libs.plugins.kotlinMultiplatform) apply false
+    alias(libs.plugins.googleServices) apply false
 }

gradle/libs.versions.toml

@@ -11,6 +11,7 @@ navigation3 = "1.1.1"
 composeMultiplatform = "1.11.1"
 composeIconsExtended = "1.7.3"
 glitchtips = "8.47.0"
+googleServices = "4.5.0"
 kotlin = "2.4.0"
 kotlinWrappers = "2026.7.0"
 kotlinxBrowser = "0.5.0"
@@ -68,6 +69,7 @@ androidApplication = { id = "com.android.application", version.ref = "agp" }
 androidMultiplatformLibrary = { id = "com.android.kotlin.multiplatform.library", version.ref = "agp" }
 composeMultiplatform = { id = "org.jetbrains.compose", version.ref = "composeMultiplatform" }
 composeCompiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+googleServices = { id = "com.google.gms.google-services", version.ref = "googleServices" }
 kotlinJvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
 kotlinMultiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
 kotlinSerialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlinSerialization"}