diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 2407e60..c58c062 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -7,17 +7,22 @@ on:
 env:
   PATH: /opt/homebrew/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
   ANDROID_HOME: /Users/freetlab/Library/Android/sdk
+  KEYSTORE_PATH: /Users/freetlab/.openclaw/workspace/.secure/pluriwave/pluriwave-upload.jks
+  KEYSTORE_ALIAS: pluriwave-upload
 
 jobs:
   analizar:
     name: Análisis de código
     runs-on: [self-hosted, macos, arm64, flutter]
     steps:
-      - uses: actions/checkout@v4
+      - name: Clonar repo
+        run: |
+          git clone https://ShanaiaBot:${{ secrets.GITEA_TOKEN }}@git.freetimelab.es/FreeTLab/pluriwave.git .
+          git fetch origin main
+
       - name: Obtener dependencias
         run: flutter pub get
-      #- name: Generar l10n
-      #  run: flutter gen-l10n
+
       - name: Analizar código
         run: flutter analyze --no-fatal-infos --no-fatal-warnings
 
@@ -27,7 +32,24 @@ jobs:
     needs: analizar
     if: ${{ gitea.ref == 'refs/heads/main' }}
     steps:
-      - uses: actions/checkout@v4
+      - name: Clonar repo
+        run: |
+          git clone https://ShanaiaBot:${{ secrets.GITEA_TOKEN }}@git.freetimelab.es/FreeTLab/pluriwave.git .
+          git fetch origin main
+
+      - name: Configurar keystore de firma
+        env:
+          KEYSTORE_PASSWORD: ${{ secrets.PLURIWAVE_KEYSTORE_PASSWORD }}
+        run: |
+          if [ ! -f "$KEYSTORE_PATH" ]; then
+            echo "ERROR: Keystore no encontrado en $KEYSTORE_PATH"
+            exit 1
+          fi
+          echo "storeFile=$KEYSTORE_PATH" > android/key.properties
+          echo "storePassword=$KEYSTORE_PASSWORD" >> android/key.properties
+          echo "keyAlias=$KEYSTORE_ALIAS" >> android/key.properties
+          echo "keyPassword=$KEYSTORE_PASSWORD" >> android/key.properties
+          echo "✅ Keystore configurado"
 
       - name: Bump versión patch + commit
         run: |
@@ -46,7 +68,6 @@ jobs:
           git add pubspec.yaml
           git commit -m "chore: bump version to ${NEW_VERSION} [ci skip]"
           git push origin main
-          echo "NEW_SEMVER=${MAJOR}.${MINOR}.${NEW_PATCH}" >> $GITHUB_ENV
 
       - name: Extraer versión
         id: version
@@ -59,15 +80,17 @@ jobs:
       - name: Obtener dependencias
         run: flutter pub get
 
-      #- name: Generar l10n
-      #  run: flutter gen-l10n
-
       - name: Build APK release
         run: flutter build apk --release
 
       - name: Build AAB release
         run: flutter build appbundle --release
 
+      - name: Verificar firma
+        run: |
+          echo "=== Huellas del keystore ==="
+          keytool -list -v -keystore "$KEYSTORE_PATH" -alias $KEYSTORE_ALIAS -storepass "$KEYSTORE_PASSWORD" 2>/dev/null | grep "SHA1:\|SHA256:" || echo "OK"
+
       - name: Publicar en ftl-builds (Zimaboard)
         run: |
           VERSION="${{ steps.version.outputs.version }}"
@@ -94,9 +117,9 @@ jobs:
           BOT_TOKEN=$(plutil -extract 'EnvironmentVariables:TELEGRAM_BOT_TOKEN' raw /Users/freetlab/Library/LaunchAgents/ai.openclaw.gateway.plist 2>/dev/null || echo "")
           if [ -z "$BOT_TOKEN" ]; then exit 0; fi
           if [ "${{ job.status }}" = "success" ]; then
-            MSG="✅ *Pluriwave* v${VERSION} build OK · ${COMMIT}%0AAPK + AAB en builds.freetimelab.es"
+            MSG="✅ *Pluriwave* v${VERSION} build OK (firma release) · ${COMMIT}%0AAPK + AAB en builds.freetimelab.es"
           else
             MSG="❌ *Pluriwave* v${VERSION} build FAILED · ${COMMIT}"
           fi
           curl -s -X POST "https://api.telegram.org/bot${BOT_TOKEN}/sendMessage" \
-            -d "chat_id=221721467" -d "parse_mode=Markdown" -d "text=${MSG}" || true
+            -d "chat_id=221721467" -d "parse_mode=Markdown" -d "text=${MSG}" || true
\ No newline at end of file
diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index 4309abf..cf54677 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -1,10 +1,21 @@
 plugins {
     id("com.android.application")
     id("kotlin-android")
-    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
     id("dev.flutter.flutter-gradle-plugin")
 }
 
+import java.util.Properties
+
+val keystoreProperties = Properties()
+val keystorePropertiesFile = rootProject.file("key.properties")
+if (keystorePropertiesFile.exists()) {
+    keystorePropertiesFile.inputStream().use { keystoreProperties.load(it) }
+}
+
+fun secret(name: String, propertyName: String): String? =
+    keystoreProperties.getProperty(propertyName)?.takeIf { it.isNotBlank() }
+        ?: System.getenv(name)?.takeIf { it.isNotBlank() }
+
 android {
     namespace = "es.freetimelab.pluriwave"
     compileSdk = flutter.compileSdkVersion
@@ -20,21 +31,38 @@ android {
     }
 
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId = "es.freetimelab.pluriwave"
-        // You can update the following values to match your application needs.
-        // For more information, see: https://flutter.dev/to/review-gradle-config.
         minSdk = flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
         versionCode = flutter.versionCode
         versionName = flutter.versionName
     }
 
+    signingConfigs {
+        create("release") {
+            val storeFilePath = secret("KEYSTORE_PATH", "storeFile")
+            val storePasswordValue = secret("KEYSTORE_PASSWORD", "storePassword")
+            val keyAliasValue = secret("KEYSTORE_ALIAS", "keyAlias")
+            val keyPasswordValue = secret("KEY_PASSWORD", "keyPassword")
+
+            if (!storeFilePath.isNullOrBlank()) {
+                storeFile = file(storeFilePath)
+            }
+            if (!storePasswordValue.isNullOrBlank()) {
+                storePassword = storePasswordValue
+            }
+            if (!keyAliasValue.isNullOrBlank()) {
+                keyAlias = keyAliasValue
+            }
+            if (!keyPasswordValue.isNullOrBlank()) {
+                keyPassword = keyPasswordValue
+            }
+        }
+    }
+
     buildTypes {
         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")
+            signingConfig = signingConfigs.getByName("release")
         }
     }
 }
diff --git a/android/app/src/main/kotlin/es/freetimelab/pluriwave/AlarmScheduler.kt b/android/app/src/main/kotlin/es/freetimelab/pluriwave/AlarmScheduler.kt
index f1e993f..4dfa6d0 100644
--- a/android/app/src/main/kotlin/es/freetimelab/pluriwave/AlarmScheduler.kt
+++ b/android/app/src/main/kotlin/es/freetimelab/pluriwave/AlarmScheduler.kt
@@ -508,7 +508,8 @@ class AlarmScheduler(private val context: Context) {
             appContext,
             requestCode(id, 2),
             Intent(appContext, MainActivity::class.java).apply {
-                this.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
+                this.flags =
+                    Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
                 putExtra(PluriWaveAlarmReceiver.EXTRA_ALARM_ACTION, PluriWaveAlarmReceiver.ACTION_FIRE)
             },
             flags or PendingIntent.FLAG_IMMUTABLE
diff --git a/pubspec.yaml b/pubspec.yaml
index c939d48..75157e7 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: pluriwave
 description: "Radio mundial con ecualizador, reconocimiento de canciones y UI premium"
 publish_to: 'none'
-version: 0.1.48+49
+version: 0.1.53+54
 
 environment:
   sdk: ^3.7.0