diff --git a/Docker/push.sh b/Docker/push.sh
index 72d5f15..9c7c173 100644
--- a/Docker/push.sh
+++ b/Docker/push.sh
@@ -1,15 +1,19 @@
 #!/usr/bin/env bash
-# filepath: /home/lukas/Volume/repo/Aniworld/Docker/push.sh
 #
-# Build and push Aniworld container images to the Gitea registry.
+# Build and push AniWorld container images to the Gitea registry.
 #
 # Usage:
-#   ./push.sh              # builds & pushes with tag "latest"
-#   ./push.sh v1.2.3       # builds & pushes with tag "v1.2.3"
-#   ./push.sh v1.2.3 --no-build   # pushes existing images only
+#   ./push.sh              # builds & pushes app with tag "latest"
+#   ./push.sh app          # builds & pushes app image
+#   ./push.sh vpn          # builds & pushes vpn image
+#   ./push.sh all          # builds & pushes both images
+#   ./push.sh app v1.2.3   # builds & pushes app with tag "v1.2.3"
+#   ./push.sh vpn v1.2.3   # builds & pushes vpn with tag "v1.2.3"
+#   ./push.sh all v1.2.3   # builds & pushes both images
+#   ./push.sh app v1.2.3 --no-build   # pushes existing image only
 #
 # Prerequisites:
-#   podman login git.lpl-mind.de
+#   podman login git.lpl-mind.de   (or: docker login git.lpl-mind.de)
 
 set -euo pipefail
 
@@ -23,12 +27,20 @@ PROJECT="aniworld"
 APP_IMAGE="${REGISTRY}/${NAMESPACE}/${PROJECT}/app"
 VPN_IMAGE="${REGISTRY}/${NAMESPACE}/${PROJECT}/vpn"
 
-TAG="${1:-latest}"
+# Parse arguments
+TARGET="${1:-app}"
+TAG="${2:-latest}"
 SKIP_BUILD=false
-if [[ "${2:-}" == "--no-build" ]]; then
+if [[ "${3:-}" == "--no-build" ]]; then
     SKIP_BUILD=true
 fi
 
+# Validate target
+if [[ "${TARGET}" != "app" && "${TARGET}" != "vpn" && "${TARGET}" != "all" ]]; then
+    echo "ERROR: Invalid target '${TARGET}'. Must be one of: app, vpn, all" >&2
+    exit 1
+fi
+
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
 
@@ -36,62 +48,93 @@ PROJECT_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
 # Helpers
 # ---------------------------------------------------------------------------
 log() { echo -e "\n>>> $*"; }
-err() { echo -e "\n❌ ERROR: $*" >&2; exit 1; }
+err() { echo -e "\nERROR: $*" >&2; exit 1; }
+
+# Detect container engine (podman preferred, docker fallback)
+if command -v podman &>/dev/null; then
+    ENGINE="podman"
+elif command -v docker &>/dev/null; then
+    ENGINE="docker"
+else
+    err "Neither podman nor docker is installed."
+fi
 
 # ---------------------------------------------------------------------------
 # Pre-flight checks
 # ---------------------------------------------------------------------------
 echo "============================================"
-echo " Aniworld — Build & Push"
+echo " AniWorld — Build & Push"
+echo " Engine   : ${ENGINE}"
 echo " Registry : ${REGISTRY}"
+echo " Target   : ${TARGET}"
 echo " Tag      : ${TAG}"
 echo "============================================"
 
-command -v podman &>/dev/null || err "podman is not installed."
-
-if ! podman login --get-login "${REGISTRY}" &>/dev/null; then
-    err "Not logged in. Run:\n  podman login ${REGISTRY}"
-fi
+log "Logging in to ${REGISTRY}"
+"${ENGINE}" login "${REGISTRY}"
 
 # ---------------------------------------------------------------------------
 # Build
 # ---------------------------------------------------------------------------
-if [[ "${SKIP_BUILD}" == false ]]; then
+build_app() {
     log "Building app image  →  ${APP_IMAGE}:${TAG}"
-    podman build \
+    "${ENGINE}" build \
         -t "${APP_IMAGE}:${TAG}" \
         -f "${SCRIPT_DIR}/Dockerfile.app" \
         "${PROJECT_ROOT}"
+}
 
-    log "Building VPN image  →  ${VPN_IMAGE}:${TAG}"
-    podman build \
+build_vpn() {
+    log "Building vpn image  →  ${VPN_IMAGE}:${TAG}"
+    "${ENGINE}" build \
         -t "${VPN_IMAGE}:${TAG}" \
         -f "${SCRIPT_DIR}/Containerfile" \
         "${SCRIPT_DIR}"
+}
+
+if [[ "${SKIP_BUILD}" == false ]]; then
+    case "${TARGET}" in
+        app)  build_app ;;
+        vpn)  build_vpn ;;
+        all)  build_app; build_vpn ;;
+    esac
 fi
 
 # ---------------------------------------------------------------------------
 # Push
 # ---------------------------------------------------------------------------
-log "Pushing ${APP_IMAGE}:${TAG}"
-podman push "${APP_IMAGE}:${TAG}"
+push_app() {
+    log "Pushing ${APP_IMAGE}:${TAG}"
+    "${ENGINE}" push "${APP_IMAGE}:${TAG}"
+}
 
-log "Pushing ${VPN_IMAGE}:${TAG}"
-podman push "${VPN_IMAGE}:${TAG}"
+push_vpn() {
+    log "Pushing ${VPN_IMAGE}:${TAG}"
+    "${ENGINE}" push "${VPN_IMAGE}:${TAG}"
+}
+
+case "${TARGET}" in
+    app)  push_app ;;
+    vpn)  push_vpn ;;
+    all)  push_app; push_vpn ;;
+esac
 
 # ---------------------------------------------------------------------------
 # Summary
 # ---------------------------------------------------------------------------
 echo ""
 echo "============================================"
-echo " ✅  Push complete!"
+echo "  Push complete!"
 echo ""
 echo " Images:"
-echo "   ${APP_IMAGE}:${TAG}"
-echo "   ${VPN_IMAGE}:${TAG}"
+case "${TARGET}" in
+    app)  echo "   ${APP_IMAGE}:${TAG}" ;;
+    vpn)  echo "   ${VPN_IMAGE}:${TAG}" ;;
+    all)  echo "   ${APP_IMAGE}:${TAG}"; echo "   ${VPN_IMAGE}:${TAG}" ;;
+esac
 echo ""
 echo " Deploy on server:"
-echo "   podman login ${REGISTRY}"
-echo "   podman-compose -f podman-compose.prod.yml pull"
-echo "   podman-compose -f podman-compose.prod.yml up -d"
+echo "   ${ENGINE} login ${REGISTRY}"
+echo "   ${ENGINE} compose -f Docker/podman-compose.prod.yml pull"
+echo "   ${ENGINE} compose -f Docker/podman-compose.prod.yml up -d"
 echo "============================================"
\ No newline at end of file
diff --git a/Docker/release.sh b/Docker/release.sh
new file mode 100644
index 0000000..8226160
--- /dev/null
+++ b/Docker/release.sh
@@ -0,0 +1,129 @@
+#!/usr/bin/env bash
+#
+# Bump the project version and push images to the registry.
+#
+# Usage:
+#   ./release.sh
+#
+# The current version is stored in VERSION (next to this script).
+# You will be asked whether to bump major, minor, or patch.
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+VERSION_FILE="${SCRIPT_DIR}/VERSION"
+
+# ---------------------------------------------------------------------------
+# Read current version
+# ---------------------------------------------------------------------------
+if [[ ! -f "${VERSION_FILE}" ]]; then
+    echo "0.0.0" > "${VERSION_FILE}"
+fi
+
+CURRENT="$(cat "${VERSION_FILE}")"
+# Strip leading 'v' for arithmetic
+VERSION="${CURRENT#v}"
+
+IFS='.' read -r MAJOR MINOR PATCH <<< "${VERSION}"
+
+echo "============================================"
+echo " AniWorld — Release"
+echo " Current version: v${MAJOR}.${MINOR}.${PATCH}"
+echo "============================================"
+echo ""
+echo "Which image(s) would you like to release?"
+echo "  1) app  (Dockerfile.app)"
+echo "  2) vpn  (Containerfile)"
+echo "  3) all  (both images)"
+echo ""
+read -rp "Enter choice [1/2/3]: " TARGET_CHOICE
+
+case "${TARGET_CHOICE}" in
+    1) TARGET="app" ;;
+    2) TARGET="vpn" ;;
+    3) TARGET="all" ;;
+    *)
+        echo "Invalid choice. Aborting." >&2
+        exit 1
+        ;;
+esac
+
+echo ""
+echo "How would you like to bump the version?"
+echo "  1) patch  (v${MAJOR}.${MINOR}.${PATCH} → v${MAJOR}.${MINOR}.$((PATCH + 1)))"
+echo "  2) minor  (v${MAJOR}.${MINOR}.${PATCH} → v${MAJOR}.$((MINOR + 1)).0)"
+echo "  3) major  (v${MAJOR}.${MINOR}.${PATCH} → v$((MAJOR + 1)).0.0)"
+echo ""
+read -rp "Enter choice [1/2/3]: " CHOICE
+
+case "${CHOICE}" in
+    1) NEW_TAG="v${MAJOR}.${MINOR}.$((PATCH + 1))" ;;
+    2) NEW_TAG="v${MAJOR}.$((MINOR + 1)).0" ;;
+    3) NEW_TAG="v$((MAJOR + 1)).0.0" ;;
+    *)
+        echo "Invalid choice. Aborting." >&2
+        exit 1
+        ;;
+esac
+
+echo ""
+echo "New version: ${NEW_TAG}"
+echo "Target: ${TARGET}"
+read -rp "Confirm? [y/N]: " CONFIRM
+if [[ ! "${CONFIRM}" =~ ^[yY]$ ]]; then
+    echo "Aborted."
+    exit 0
+fi
+
+# ---------------------------------------------------------------------------
+# Write new version
+# ---------------------------------------------------------------------------
+echo "${NEW_TAG}" > "${VERSION_FILE}"
+echo "Version file updated → ${VERSION_FILE}"
+
+# Keep root package.json in sync.
+FRONT_VERSION="${NEW_TAG#v}"
+FRONT_PKG="${SCRIPT_DIR}/../package.json"
+if [[ -f "${FRONT_PKG}" ]]; then
+    sed -i "s/\"version\": \"[^\"]*\"/\"version\": \"${FRONT_VERSION}\"/" "${FRONT_PKG}"
+    echo "package.json version updated → ${FRONT_VERSION}"
+else
+    echo "Warning: package.json not found, skipping package.json version sync" >&2
+fi
+
+# Keep root pyproject.toml in sync.
+BACKEND_PYPROJECT="${SCRIPT_DIR}/../pyproject.toml"
+if [[ -f "${BACKEND_PYPROJECT}" ]]; then
+    # Update version under [project] section if present
+    if grep -q '^\[project\]' "${BACKEND_PYPROJECT}"; then
+        sed -i "/^\[project\]/,/^\[/ s/^version = \".*\"/version = \"${FRONT_VERSION}\"/" "${BACKEND_PYPROJECT}"
+    else
+        sed -i "s/^version = \".*\"/version = \"${FRONT_VERSION}\"/" "${BACKEND_PYPROJECT}"
+    fi
+    echo "pyproject.toml version updated → ${FRONT_VERSION}"
+else
+    echo "Warning: pyproject.toml not found, skipping pyproject.toml version sync" >&2
+fi
+
+# ---------------------------------------------------------------------------
+# Push containers
+# ---------------------------------------------------------------------------
+bash "${SCRIPT_DIR}/push.sh" "${TARGET}" "${NEW_TAG}"
+bash "${SCRIPT_DIR}/push.sh" "${TARGET}"
+
+
+# ---------------------------------------------------------------------------
+# Git tag (local only; push after container build)
+# ---------------------------------------------------------------------------
+cd "${SCRIPT_DIR}/.."
+git add Docker/VERSION package.json pyproject.toml
+git commit -m "chore: release ${NEW_TAG}"
+git tag -a "${NEW_TAG}" -m "Release ${NEW_TAG}"
+echo "Local git commit + tag ${NEW_TAG} created."
+
+# ---------------------------------------------------------------------------
+# Push git commits & tag
+# ---------------------------------------------------------------------------
+git push origin HEAD
+git push origin "${NEW_TAG}"
+echo "Git commit and tag ${NEW_TAG} pushed."