diff --git a/.gitea/workflows/build-release.yml b/.gitea/workflows/build-release.yml
index e704103..f682393 100644
--- a/.gitea/workflows/build-release.yml
+++ b/.gitea/workflows/build-release.yml
@@ -20,6 +20,22 @@ jobs:
           echo "sdk.dir=$ANDROID_HOME" > local.properties
           cat local.properties
 
+      - name: Ensure signing keystore
+        run: |
+          KEYSTORE="$HOME/.android/debug.keystore"
+          if [ ! -f "$KEYSTORE" ]; then
+            mkdir -p "$HOME/.android"
+            keytool -genkeypair -v \
+              -keystore "$KEYSTORE" \
+              -alias androiddebugkey \
+              -keyalg RSA -keysize 2048 -validity 10000 \
+              -storepass android -keypass android \
+              -dname "CN=Android Debug,O=Android,C=US"
+            echo "Generated debug keystore"
+          else
+            echo "Keystore already exists"
+          fi
+
       - name: Build Release APK
         shell: bash
         run: |
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 19453c8..9621b4e 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -11,6 +11,15 @@ android {
     namespace = "pl.firmatpp.itstransport"
     compileSdk = 35
 
+    signingConfigs {
+        create("release") {
+            storeFile = file("${System.getProperty("user.home")}/.android/debug.keystore")
+            storePassword = "android"
+            keyAlias = "androiddebugkey"
+            keyPassword = "android"
+        }
+    }
+
     defaultConfig {
         applicationId = "pl.firmatpp.itstransport"
         minSdk = 26
@@ -36,6 +45,7 @@ android {
             )
         }
         release {
+            signingConfig = signingConfigs.getByName("release")
             isMinifyEnabled = false
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),