diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
new file mode 100644
index 0000000..ac0ce3d
--- /dev/null
+++ b/.github/workflows/android.yml
@@ -0,0 +1,187 @@
+name: Android CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+    inputs:
+      build_type:
+        description: 'Build type to run'
+        required: true
+        default: 'all'
+        type: choice
+        options:
+          - all
+          - debug
+          - release
+          - signed-release
+
+env:
+  JAVA_VERSION: '17'
+
+jobs:
+  build-debug:
+    name: Build Debug APK
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name != 'workflow_dispatch' || github.event.inputs.build_type == 'all' || github.event.inputs.build_type == 'debug' }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Create dummy keystore.properties
+        run: |
+          echo "storeFile=dummy.keystore" > keystore.properties
+          echo "storePassword=dummy" >> keystore.properties
+          echo "keyAlias=dummy" >> keystore.properties
+          echo "keyPassword=dummy" >> keystore.properties
+
+      - name: Build Debug APK
+        run: ./gradlew assembleDebug
+
+      - name: Upload Debug APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: app-debug
+          path: app/build/outputs/apk/debug/*.apk
+          retention-days: 14
+
+  build-release:
+    name: Build Release APK (Unsigned)
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name != 'workflow_dispatch' || github.event.inputs.build_type == 'all' || github.event.inputs.build_type == 'release' }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Create dummy keystore.properties
+        run: |
+          echo "storeFile=dummy.keystore" > keystore.properties
+          echo "storePassword=dummy" >> keystore.properties
+          echo "keyAlias=dummy" >> keystore.properties
+          echo "keyPassword=dummy" >> keystore.properties
+
+      - name: Build Unsigned Release APK
+        run: ./gradlew assembleRelease -x validateSigningRelease || ./gradlew assembleRelease --info
+        continue-on-error: true
+
+      - name: Upload Unsigned Release APK
+        uses: actions/upload-artifact@v4
+        if: success()
+        with:
+          name: app-release-unsigned
+          path: app/build/outputs/apk/release/*.apk
+          retention-days: 14
+
+  build-signed-release:
+    name: Build Signed Release APK
+    runs-on: ubuntu-latest
+    if: ${{ (github.event_name == 'push' && github.ref == 'refs/heads/main') || (github.event_name == 'workflow_dispatch' && (github.event.inputs.build_type == 'all' || github.event.inputs.build_type == 'signed-release')) }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Decode Keystore
+        env:
+          KEYSTORE_BASE64: ${{ secrets.KEYSTORE_BASE64 }}
+        run: |
+          echo "$KEYSTORE_BASE64" | base64 --decode > app/release.keystore
+
+      - name: Create keystore.properties
+        env:
+          KEYSTORE_PASSWORD: ${{ secrets.KEYSTORE_PASSWORD }}
+          KEY_ALIAS: ${{ secrets.KEY_ALIAS }}
+          KEY_PASSWORD: ${{ secrets.KEY_PASSWORD }}
+        run: |
+          echo "storeFile=app/release.keystore" > keystore.properties
+          echo "storePassword=$KEYSTORE_PASSWORD" >> keystore.properties
+          echo "keyAlias=$KEY_ALIAS" >> keystore.properties
+          echo "keyPassword=$KEY_PASSWORD" >> keystore.properties
+
+      - name: Build Signed Release APK
+        run: ./gradlew assembleRelease
+
+      - name: Upload Signed Release APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: app-release-signed
+          path: app/build/outputs/apk/release/*.apk
+          retention-days: 30
+
+  test:
+    name: Run Unit Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Create dummy keystore.properties
+        run: |
+          echo "storeFile=dummy.keystore" > keystore.properties
+          echo "storePassword=dummy" >> keystore.properties
+          echo "keyAlias=dummy" >> keystore.properties
+          echo "keyPassword=dummy" >> keystore.properties
+
+      - name: Run Unit Tests
+        run: ./gradlew test
+
+      - name: Upload Test Results
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: test-results
+          path: '**/build/reports/tests/'
+          retention-days: 14
\ No newline at end of file
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index fdac2b3..97e6dc6 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -4,7 +4,9 @@ import java.util.Properties
 
 val keystorePropertiesFile = rootProject.file("keystore.properties")
 val keystoreProperties = Properties()
-keystoreProperties.load(FileInputStream(keystorePropertiesFile))
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(FileInputStream(keystorePropertiesFile))
+}
 
 plugins {
     alias(libs.plugins.android.application)
@@ -34,11 +36,13 @@ android {
     }
 
     signingConfigs {
-        create("release") {
-            storeFile = rootProject.file(keystoreProperties["storeFile"] as String)
-            storePassword = keystoreProperties["storePassword"] as String
-            keyAlias = keystoreProperties["keyAlias"] as String
-            keyPassword = keystoreProperties["keyPassword"] as String
+        if (keystoreProperties.containsKey("storeFile")) {
+            create("release") {
+                storeFile = rootProject.file(keystoreProperties["storeFile"] as String)
+                storePassword = keystoreProperties["storePassword"] as String
+                keyAlias = keystoreProperties["keyAlias"] as String
+                keyPassword = keystoreProperties["keyPassword"] as String
+            }
         }
     }
 
@@ -54,7 +58,9 @@ android {
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro"
             )
-            signingConfig = signingConfigs.getByName("release")
+            if (keystoreProperties.containsKey("storeFile")) {
+                signingConfig = signingConfigs.getByName("release")
+            }
             ndk {
                 debugSymbolLevel = "SYMBOL_TABLE"
             }