diff --git a/.DS_Store b/.DS_Store
index 6b3bc2f..5db0715 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index a8437fb..9f7cf93 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -8,6 +8,17 @@ plugins {
     id("dev.flutter.flutter-gradle-plugin")
 }
 
+// Aggiungiamo esplicitamente gli import richiesti da Kotlin
+import java.io.FileInputStream
+        import java.util.Properties
+
+// Carichiamo il file con le password
+val keystoreProperties = Properties()
+val keystorePropertiesFile = rootProject.file("key.properties")
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(FileInputStream(keystorePropertiesFile))
+}
+
 android {
     namespace = "com.amastra.tetraq"
     compileSdk = flutter.compileSdkVersion
@@ -18,8 +29,11 @@ android {
         targetCompatibility = JavaVersion.VERSION_17
     }
 
-    kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_17.toString()
+    // Sintassi aggiornata come richiesto dal compilatore Kotlin
+    kotlin {
+        compilerOptions {
+            jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17)
+        }
     }
 
     defaultConfig {
@@ -33,15 +47,28 @@ android {
         versionName = flutter.versionName
     }
 
+    // Aggiunto il blocco per la firma in formato Kotlin DSL
+    signingConfigs {
+        create("release") {
+            keyAlias = keystoreProperties.getProperty("keyAlias")
+            keyPassword = keystoreProperties.getProperty("keyPassword")
+            val storeFileString = keystoreProperties.getProperty("storeFile")
+            if (storeFileString != null) {
+                storeFile = file(storeFileString)
+            }
+            storePassword = keystoreProperties.getProperty("storePassword")
+        }
+    }
+
     buildTypes {
-        release {
+        getByName("release") {
             // TODO: Add your own signing config for the release build.
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig = signingConfigs.getByName("debug")
+            // Ora usiamo la chiave di release appena creata
+            signingConfig = signingConfigs.getByName("release")
         }
     }
 }
 
 flutter {
     source = "../.."
-}
+}
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