diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d4459c6..b36564a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,12 +35,27 @@ jobs:
       - name: Run lints
         run: flutter analyze
 
-      - name: Run dartfmt
-        run: dartfmt --dry-run --set-exit-if-changed .
+      - name: Check formatting
+        run: flutter format --dry-run --set-exit-if-changed .
 
       - name: Run tests
         run: flutter test
 
+      - name: Inject keystore
+        working-directory: android
+        env:
+          KEY_STORE_PASSWORD: ${{ secrets.KEY_STORE_PASSWORD }}
+          KEY_PASSWORD: ${{ secrets.KEY_PASSWORD }}
+          ALIAS: ${{ secrets.ALIAS }}
+          SIGNING_KEY: ${{ secrets.SIGNING_KEY }}
+        run: |
+          echo storePassword=$KEY_STORE_PASSWORD > key.properties
+          echo keyPassword=$KEY_PASSWORD >> key.properties
+          echo keyAlias=$ALIAS >> key.properties
+          echo storeFile=$HOME/key.jks >> key.properties
+
+          echo $SIGNING_KEY | base64 -d | tee ~/key.jks >/dev/null
+
       - name: Android build
         run: flutter build apk --split-per-abi
 
diff --git a/android/app/build.gradle b/android/app/build.gradle
index da27aec..3af13b8 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -25,8 +25,14 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
+def keystoreProperties = new Properties()
+def keystorePropertiesFile = rootProject.file('key.properties')
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+}
+
 android {
-    compileSdkVersion 28
+    compileSdkVersion 30
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
@@ -37,21 +43,27 @@ android {
     }
 
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "com.example.lemmur"
+        applicationId "com.krawieck.lemmur"
         minSdkVersion 16
-        targetSdkVersion 28
+        targetSdkVersion 30
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }
 
-    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.debug
-        }
-    }
+    signingConfigs {
+       release {
+           keyAlias keystoreProperties['keyAlias']
+           keyPassword keystoreProperties['keyPassword']
+           storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+           storePassword keystoreProperties['storePassword']
+       }
+   }
+
+   buildTypes {
+       release {
+           signingConfig signingConfigs.release
+       }
+   }
 }
 
 flutter {
diff --git a/android/app/src/debug/AndroidManifest.xml b/android/app/src/debug/AndroidManifest.xml
index 69fdad9..b1a7e38 100644
--- a/android/app/src/debug/AndroidManifest.xml
+++ b/android/app/src/debug/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.lemmur">
+    package="com.krawieck.lemmur">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index a2859cf..7f730ee 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.lemmur">
+    package="com.krawieck.lemmur">
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that
          calls FlutterMain.startInitialization(this); in its onCreate method.
          In most cases you can leave this as-is, but you if you want to provide
diff --git a/android/app/src/main/kotlin/com/example/lemmur/MainActivity.kt b/android/app/src/main/kotlin/com/krawieck/lemmur/MainActivity.kt
similarity index 77%
rename from android/app/src/main/kotlin/com/example/lemmur/MainActivity.kt
rename to android/app/src/main/kotlin/com/krawieck/lemmur/MainActivity.kt
index 04f5030..efb92d2 100644
--- a/android/app/src/main/kotlin/com/example/lemmur/MainActivity.kt
+++ b/android/app/src/main/kotlin/com/krawieck/lemmur/MainActivity.kt
@@ -1,4 +1,4 @@
-package com.example.lemmur
+package com.krawieck.lemmur
 
 import io.flutter.embedding.android.FlutterActivity
 
diff --git a/android/app/src/profile/AndroidManifest.xml b/android/app/src/profile/AndroidManifest.xml
index 69fdad9..b1a7e38 100644
--- a/android/app/src/profile/AndroidManifest.xml
+++ b/android/app/src/profile/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.lemmur">
+    package="com.krawieck.lemmur">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
diff --git a/ios/Runner.xcodeproj/project.pbxproj b/ios/Runner.xcodeproj/project.pbxproj
index c79c9d4..a435fbd 100644
--- a/ios/Runner.xcodeproj/project.pbxproj
+++ b/ios/Runner.xcodeproj/project.pbxproj
@@ -378,7 +378,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.lemmur;
+				PRODUCT_BUNDLE_IDENTIFIER = com.krawieck.lemmur;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
@@ -515,7 +515,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.lemmur;
+				PRODUCT_BUNDLE_IDENTIFIER = com.krawieck.lemmur;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -546,7 +546,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.lemmur;
+				PRODUCT_BUNDLE_IDENTIFIER = com.krawieck.lemmur;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
@@ -580,4 +580,4 @@
 /* End XCConfigurationList section */
 	};
 	rootObject = 97C146E61CF9000F007C117D /* Project object */;
-}
\ No newline at end of file
+}
diff --git a/linux/CMakeLists.txt b/linux/CMakeLists.txt
index 3087563..55f74ae 100644
--- a/linux/CMakeLists.txt
+++ b/linux/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.10)
 project(runner LANGUAGES CXX)
 
 set(BINARY_NAME "lemmur")
-set(APPLICATION_ID "com.example.lemmur")
+set(APPLICATION_ID "com.krawieck.lemmur")
 
 cmake_policy(SET CMP0063 NEW)