diff --git a/.gitea/workflows/docker-build-push.yml b/.gitea/workflows/docker-build-push.yml
new file mode 100644
index 0000000..bd6dd9a
--- /dev/null
+++ b/.gitea/workflows/docker-build-push.yml
@@ -0,0 +1,82 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches: [ main, master ]
+    tags: [ 'v*', 'release-*' ]
+  workflow_dispatch: {}
+
+env:
+  DOCKERFILE: Dockerfile
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU (optional for multi-arch)
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: amd64,arm64
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Define Registry Variables
+        id: vars
+        run: |
+          # Derive registry/namespace/image from Gitea context, normalize to lowercase
+          OWNER="${{ gitea.repository_owner }}"
+          REPO="${{ gitea.repository_name }}"
+          OWNER=$(echo "$OWNER" | tr '[:upper:]' '[:lower:]')
+          REPO=$(echo "$REPO" | tr '[:upper:]' '[:lower:]')
+
+          # Allow overriding image name via repository variable IMAGE_NAME; default to repo name
+          IMAGE_NAME="${{ vars.IMAGE_NAME }}"
+          if [ -z "$IMAGE_NAME" ]; then IMAGE_NAME="$REPO"; fi
+          IMAGE_NAME=$(echo "$IMAGE_NAME" | tr '[:upper:]' '[:lower:]')
+
+          # Gitea exposes server URL like https://gitea.example.com
+          # Prefer explicit var GITEA_REGISTRY; else, use the same host as Gitea server
+          if [ -n "${{ vars.GITEA_REGISTRY }}" ]; then
+            REGISTRY="${{ vars.GITEA_REGISTRY }}"
+          else
+            REGISTRY=$(echo "${{ gitea.server_url }}" | sed -E 's#^https?://##; s#/$##')
+          fi
+
+          echo "registry=$REGISTRY" >> "$GITHUB_OUTPUT"
+          echo "owner=$OWNER" >> "$GITHUB_OUTPUT"
+          echo "image=$IMAGE_NAME" >> "$GITHUB_OUTPUT"
+
+      - name: Log in to Gitea Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ steps.vars.outputs.registry }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.GITEA_TOKEN }}
+
+      - name: Extract metadata (tags, labels)
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ steps.vars.outputs.registry }}/${{ steps.vars.outputs.owner }}/${{ steps.vars.outputs.image }}
+          tags: |
+            type=raw,value=latest,enable=${{ gitea.ref_type == 'branch' && (gitea.ref == 'refs/heads/main' || gitea.ref == 'refs/heads/master') }}
+            type=ref,event=branch
+            type=ref,event=tag
+            type=sha,format=short
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ${{ env.DOCKERFILE }}
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=registry,ref=${{ steps.vars.outputs.registry }}/${{ steps.vars.outputs.owner }}/${{ steps.vars.outputs.image }}:buildcache
+          cache-to: type=registry,ref=${{ steps.vars.outputs.registry }}/${{ steps.vars.outputs.owner }}/${{ steps.vars.outputs.image }}:buildcache,mode=max