diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index d7d7019..ae2816c 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -79,7 +79,7 @@ jobs:
             export GOARM=${{ matrix.arm_version }}
           fi
 
-          OUTPUT="${OUTPUT}"
+          OUTPUT="${OUTPUT}${{ matrix.ext }}"
           echo "Building $OUTPUT"
           GOOS=${{ matrix.os }} GOARCH=${{ matrix.arch }} go build -ldflags="-s -w" -trimpath -o "$OUTPUT"
         shell: bash
@@ -105,7 +105,31 @@ jobs:
           cp -r ./web $BUILD_DIR/usr/share/$PKG_NAME/
           chmod +x $BUILD_DIR/usr/bin/$PKG_NAME
 
-          # 4. Create Control File
+          # 4. Handle .env (Copy as a .template so it doesn't overwrite existing ones)
+          if [ -f ".env" ]; then
+            cp .env $BUILD_DIR/usr/share/$PKG_NAME/.env.template
+          else
+            echo "PORT=8080" > $BUILD_DIR/usr/share/$PKG_NAME/.env.template
+          fi
+
+          # 5. Create the systemd Service File
+          cat <<EOF > $BUILD_DIR/etc/systemd/system/$PKG_NAME.service
+          [Unit]
+          Description=Slideshow Application Service
+          After=network.target
+
+          [Service]
+          Type=simple
+          ExecStart=/usr/bin/$PKG_NAME
+          WorkingDirectory=/usr/share/$PKG_NAME
+          Restart=always
+          User=root
+
+          [Install]
+          WantedBy=multi-user.target
+          EOF
+          
+          # 6. Create Control File
           cat <<EOF > $BUILD_DIR/DEBIAN/control
           Package: $PKG_NAME
           Version: $VERSION
@@ -116,7 +140,28 @@ jobs:
           Description: Slideshow Application
           EOF
 
-          # 5. Build .deb
+          # 7. Optional: Add post-install script to enable service automatically
+          echo "create service"
+          cat <<EOF > $BUILD_DIR/DEBIAN/postinst
+          #!/bin/sh
+          # Check if .env exists in the target share folder
+          if [ ! -f "/usr/share/$PKG_NAME/.env" ]; then
+             echo "Creating new .env from template..."
+             cp /usr/share/$PKG_NAME/.env.template /usr/share/$PKG_NAME/.env
+          else
+             echo ".env already exists, skipping template copy to preserve settings."
+          fi
+
+          echo "reload"
+          systemctl daemon-reload
+          echo "enable service"
+          systemctl enable $PKG_NAME.service
+          echo "start service"
+          systemctl start $PKG_NAME.service
+          EOF
+          chmod 555 $BUILD_DIR/DEBIAN/postinst
+
+          # 8. Build .deb
           dpkg-deb --build $BUILD_DIR
         shell: bash