diff --git a/.forgejo/workflows/ci.yml b/.forgejo/workflows/ci.yml
index ce8e06b..465dbda 100644
--- a/.forgejo/workflows/ci.yml
+++ b/.forgejo/workflows/ci.yml
@@ -55,7 +55,14 @@ jobs:
         run: flutter pub get
 
       - name: Build release APK
-        run: flutter build apk --release
+        run: |
+          # Derive version from the tag (e.g. v26.03.12 → name=26.03.12 number=260312)
+          TAG="${{ github.ref_name }}"
+          BUILD_NAME="${TAG#v}"
+          BUILD_NUMBER=$(echo "$BUILD_NAME" | tr -d '.')
+          flutter build apk --release \
+            --build-name="$BUILD_NAME" \
+            --build-number="$BUILD_NUMBER"
 
       - name: Set artifact name
         id: artifact
diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index 1eeb08e..ac1073e 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -37,11 +37,13 @@ android {
     }
 
     signingConfigs {
-        create("release") {
-            keyAlias = keystoreProperties["keyAlias"] as String
-            keyPassword = keystoreProperties["keyPassword"] as String
-            storeFile = file(keystoreProperties["storeFile"] as String)
-            storePassword = keystoreProperties["storePassword"] as String
+        if (keystorePropertiesFile.exists()) {
+            create("release") {
+                keyAlias = keystoreProperties["keyAlias"] as String
+                keyPassword = keystoreProperties["keyPassword"] as String
+                storeFile = file(keystoreProperties["storeFile"] as String)
+                storePassword = keystoreProperties["storePassword"] as String
+            }
         }
     }
 
diff --git a/pubspec.yaml b/pubspec.yaml
index e13a650..299298d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -2,7 +2,7 @@ name: fabled_app
 description: "FabledAssistant mobile client for Android."
 publish_to: 'none'
 
-version: 26.03.12+1
+version: 0.0.0+0  # overridden at build time via --build-name / --build-number
 
 environment:
   sdk: ^3.11.0