diff --git a/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..d291112
--- /dev/null
+++ b/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
+    <monochrome android:drawable="@mipmap/ic_launcher_monochrome" />
+</adaptive-icon>
diff --git a/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..d291112
--- /dev/null
+++ b/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
+    <monochrome android:drawable="@mipmap/ic_launcher_monochrome" />
+</adaptive-icon>
diff --git a/android/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..90051bc
Binary files /dev/null and b/android/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-hdpi/ic_launcher_monochrome.png b/android/app/src/main/res/mipmap-hdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..c905416
Binary files /dev/null and b/android/app/src/main/res/mipmap-hdpi/ic_launcher_monochrome.png differ
diff --git a/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 0000000..6ee4d2f
Binary files /dev/null and b/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png differ
diff --git a/android/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..eb2e3e1
Binary files /dev/null and b/android/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-mdpi/ic_launcher_monochrome.png b/android/app/src/main/res/mipmap-mdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..6a9b53b
Binary files /dev/null and b/android/app/src/main/res/mipmap-mdpi/ic_launcher_monochrome.png differ
diff --git a/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 0000000..558e396
Binary files /dev/null and b/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png differ
diff --git a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..d1abbd3
Binary files /dev/null and b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_monochrome.png b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..c3df2c6
Binary files /dev/null and b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_monochrome.png differ
diff --git a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..7909a18
Binary files /dev/null and b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png differ
diff --git a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..e6a82e8
Binary files /dev/null and b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_monochrome.png b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..ab10a22
Binary files /dev/null and b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_monochrome.png differ
diff --git a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..ceb507f
Binary files /dev/null and b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png differ
diff --git a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..96b59cc
Binary files /dev/null and b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_monochrome.png b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..e5f0fc6
Binary files /dev/null and b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_monochrome.png differ
diff --git a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..be6a389
Binary files /dev/null and b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png differ
diff --git a/android/app/src/main/res/values/ic_launcher_background.xml b/android/app/src/main/res/values/ic_launcher_background.xml
new file mode 100644
index 0000000..f42ada6
--- /dev/null
+++ b/android/app/src/main/res/values/ic_launcher_background.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#FFFFFF</color>
+</resources>
diff --git a/assets/alarm.wav b/assets/alarm.wav
new file mode 100644
index 0000000..5353962
Binary files /dev/null and b/assets/alarm.wav differ
diff --git a/release.sh b/release.sh
index 65b15c5..57ab7d3 100755
--- a/release.sh
+++ b/release.sh
@@ -22,6 +22,7 @@ sed -i "s/^version: .*/version: ${new}/" "$PUBSPEC"
 flutter clean
 flutter pub get
 flutter build apk --release
+mkdir -p release
 cp build/app/outputs/flutter-apk/app-release.apk ./release/eggtimer.apk
 echo "APK built and copied to ./release/eggtimer.apk"
 GITEA_URL="https://git.ude-consult.de"
@@ -62,11 +63,24 @@ fi
 
 echo "Release ${VERSION_TAG} erstellt, ID=${release_id}"
 
+APK_FILENAME="eggtimer-${VERSION_TAG}.apk"
+
+# Alte Assets entfernen, damit nur die APK im Release bleibt
+existing_assets=$(curl -sS \
+  -H "Authorization: token ${GITEA_TOKEN}" \
+  "${GITEA_URL}/api/v1/repos/${OWNER}/${REPO}/releases/${release_id}/assets")
+
+echo "$existing_assets" | jq -r '.[] | [.id, .name] | @tsv' | while IFS=$'\t' read -r asset_id asset_name; do
+  echo "Entferne altes Asset: ${asset_name}"
+  curl -sS -X DELETE \
+    -H "Authorization: token ${GITEA_TOKEN}" \
+    "${GITEA_URL}/api/v1/repos/${OWNER}/${REPO}/releases/${release_id}/assets/${asset_id}" >/dev/null
+done
+
 # 2. APK hochladen
 curl -sS -X POST \
   -H "Authorization: token ${GITEA_TOKEN}" \
-  -F "attachment=@${APK_PATH};filename=eggtimer-${VERSION_TAG}.apk" \
+  -F "attachment=@${APK_PATH};filename=${APK_FILENAME}" \
   "${GITEA_URL}/api/v1/repos/${OWNER}/${REPO}/releases/${release_id}/assets"
 
 echo "APK hochgeladen."
-
diff --git a/testrelease.sh b/testrelease.sh
new file mode 100755
index 0000000..79766e1
--- /dev/null
+++ b/testrelease.sh
@@ -0,0 +1,5 @@
+# Test the release before publishing
+flutter emulator --launch Pixel_7
+sleep 5s
+flutter run
+