diff --git a/.github/workflows/release-dev.yml b/.github/workflows/release-dev.yml
new file mode 100644
index 0000000..8d627ad
--- /dev/null
+++ b/.github/workflows/release-dev.yml
@@ -0,0 +1,229 @@
+name: Pre-release (dev/0.5.0)
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - 'dev/0.5.0'
+
+permissions:
+  contents: write
+
+env:
+  FLUTTER_VERSION: '3.41.5'
+
+jobs:
+  android:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        flavor: [komet, oneme]
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Java
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: 'stable'
+
+      - name: Get dependencies
+        run: flutter pub get
+
+      - name: Configure Gradle
+        run: |
+          mkdir -p ~/.gradle
+          echo "org.gradle.jvmargs=-Xmx4096m -XX:MaxMetaspaceSize=1024m" >> ~/.gradle/gradle.properties
+          echo "kotlin.daemon.jvmargs=-Xmx1536m" >> ~/.gradle/gradle.properties
+
+      - name: Setup release signing
+        env:
+          KEYSTORE_BASE64: ${{ secrets.KEYSTORE_BASE64 }}
+          KEYSTORE_PASSWORD: ${{ secrets.KEYSTORE_PASSWORD }}
+          KEY_PASSWORD: ${{ secrets.KEY_PASSWORD }}
+          KEY_ALIAS: ${{ secrets.KEY_ALIAS }}
+        run: |
+          if [ -z "$KEYSTORE_BASE64" ]; then
+            echo "KEYSTORE_BASE64 secret not set — release will be debug-signed."
+            exit 0
+          fi
+          echo "$KEYSTORE_BASE64" | base64 -d > android/app/komet-release.jks
+          {
+            echo "storePassword=$KEYSTORE_PASSWORD"
+            echo "keyPassword=$KEY_PASSWORD"
+            echo "keyAlias=$KEY_ALIAS"
+            echo "storeFile=komet-release.jks"
+          } > android/key.properties
+          echo "Release signing configured."
+
+      - name: Build APKs and App Bundle (${{ matrix.flavor }})
+        run: |
+          flutter build apk --release --flavor ${{ matrix.flavor }}
+          flutter build apk --release --split-per-abi --flavor ${{ matrix.flavor }}
+          flutter build appbundle --release --flavor ${{ matrix.flavor }}
+
+      - name: Collect Android artifacts (${{ matrix.flavor }})
+        run: |
+          F=${{ matrix.flavor }}
+          mkdir -p dist
+          cp build/app/outputs/flutter-apk/app-$F-release.apk            dist/Komet-android-$F-universal.apk
+          cp build/app/outputs/flutter-apk/app-arm64-v8a-$F-release.apk  dist/Komet-android-$F-arm64-v8a.apk
+          cp build/app/outputs/flutter-apk/app-armeabi-v7a-$F-release.apk dist/Komet-android-$F-armeabi-v7a.apk
+          cp build/app/outputs/flutter-apk/app-x86_64-$F-release.apk     dist/Komet-android-$F-x86_64.apk
+          cp build/app/outputs/bundle/${F}Release/app-$F-release.aab     dist/Komet-android-$F.aab
+
+      - name: Upload Android artifacts (${{ matrix.flavor }})
+        uses: actions/upload-artifact@v4
+        with:
+          name: android-${{ matrix.flavor }}
+          path: dist/*
+          if-no-files-found: error
+          retention-days: 7
+
+  windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: 'stable'
+      - name: Get dependencies
+        run: flutter pub get
+      - name: Build Windows
+        run: flutter build windows --release
+      - name: Package Windows
+        shell: pwsh
+        run: |
+          New-Item -ItemType Directory -Force -Path dist | Out-Null
+          Compress-Archive -Path build/windows/x64/runner/Release/* -DestinationPath dist/Komet-windows-x64.zip
+      - name: Upload Windows artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: windows
+          path: dist/*
+          if-no-files-found: error
+          retention-days: 7
+
+  linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: 'stable'
+      - name: Install Linux desktop dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y clang cmake ninja-build pkg-config libgtk-3-dev
+      - name: Get dependencies
+        run: flutter pub get
+      - name: Build Linux
+        run: flutter build linux --release
+      - name: Package Linux
+        run: |
+          mkdir -p dist
+          tar -C build/linux/x64/release/bundle -czf dist/Komet-linux-x64.tar.gz .
+      - name: Upload Linux artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: linux
+          path: dist/*
+          if-no-files-found: error
+          retention-days: 7
+
+  macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: 'stable'
+      - name: Get dependencies
+        run: flutter pub get
+      - name: Build macOS
+        run: flutter build macos --release
+      - name: Package macOS
+        run: |
+          mkdir -p dist
+          APP=$(find build/macos/Build/Products/Release -maxdepth 1 -name "*.app" | head -1)
+          ditto -c -k --keepParent "$APP" dist/Komet-macos.zip
+      - name: Upload macOS artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: macos
+          path: dist/*
+          if-no-files-found: error
+          retention-days: 7
+
+  ios:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          channel: 'stable'
+      - name: Get dependencies
+        run: flutter pub get
+      - name: Build iOS (no codesign)
+        run: flutter build ios --release --no-codesign
+      - name: Package unsigned IPA
+        run: |
+          mkdir -p dist build/ios/Payload
+          cp -R build/ios/iphoneos/Runner.app build/ios/Payload/
+          (cd build/ios && zip -qr ../../dist/Komet-ios-unsigned.ipa Payload)
+      - name: Upload iOS artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ios
+          path: dist/*
+          if-no-files-found: error
+          retention-days: 7
+
+  release:
+    needs: [android, windows, linux, macos, ios]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: dist
+          merge-multiple: true
+
+      - name: Compute version
+        id: ver
+        run: |
+          BRANCH_VERSION="${GITHUB_REF_NAME#dev/}"
+          echo "tag=v${BRANCH_VERSION}-dev.${GITHUB_RUN_NUMBER}" >> "$GITHUB_OUTPUT"
+          echo "name=Komet ${BRANCH_VERSION}-dev (build ${GITHUB_RUN_NUMBER})" >> "$GITHUB_OUTPUT"
+
+      - name: List artifacts
+        run: ls -lhR dist
+
+      - name: Create pre-release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ steps.ver.outputs.tag }}
+          name: ${{ steps.ver.outputs.name }}
+          target_commitish: ${{ github.sha }}
+          prerelease: true
+          generate_release_notes: true
+          fail_on_unmatched_files: true
+          body: |
+            Automated pre-release built from `${{ github.ref_name }}` @ `${{ github.sha }}`.
+
+            ⚠️ The iOS build is **unsigned** — install via AltStore / Sideloadly / a jailbroken device only.
+          files: dist/*