diff --git a/.github/workflows/publish-image.yml b/.github/workflows/publish-image.yml
new file mode 100644
index 0000000..0e14d70
--- /dev/null
+++ b/.github/workflows/publish-image.yml
@@ -0,0 +1,134 @@
+name: Verify and publish ARM64 image
+
+on:
+  pull_request:
+    paths:
+      - Dockerfile
+      - .dockerignore
+      - pyproject.toml
+      - uv.lock
+      - jarca_ledger_mcp/**
+      - dashboard/**
+      - .github/workflows/publish-image.yml
+  push:
+    tags:
+      - "v*"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: image-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  verify-arm64:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Build ARM64 verification image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/arm64
+          load: true
+          push: false
+          tags: jarca-ledger-mcp:arm64-verify
+          cache-from: type=gha,scope=jarca-ledger-arm64
+          cache-to: type=gha,mode=max,scope=jarca-ledger-arm64
+
+      - name: Verify image platform, imports, and SQLite
+        run: |
+          set -euo pipefail
+          test "$(docker image inspect jarca-ledger-mcp:arm64-verify --format '{{.Architecture}}')" = arm64
+          docker run --rm --platform linux/arm64 \
+            -e JARCA_LEDGER_DB_PATH=/tmp/ledger.sqlite3 \
+            jarca-ledger-mcp:arm64-verify \
+            python -c 'import platform, cryptography, numpy, pandas, pyarrow, pymupdf; from jarca_ledger_mcp import service; result=service.health_check(); assert platform.machine() == "aarch64"; assert result["success"], result; print(result["schema_version"])'
+
+      - name: Verify MCP and Dashboard startup
+        run: |
+          set -euo pipefail
+          trap 'docker rm -f jarca-mcp-smoke jarca-dashboard-smoke >/dev/null 2>&1 || true' EXIT
+
+          docker run -d --name jarca-mcp-smoke --platform linux/arm64 \
+            jarca-ledger-mcp:arm64-verify
+          for _ in $(seq 1 60); do
+            status=$(docker inspect --format '{{.State.Health.Status}}' jarca-mcp-smoke)
+            test "$status" = healthy && break
+            test "$status" = unhealthy && { docker logs jarca-mcp-smoke; exit 1; }
+            sleep 1
+          done
+          test "$(docker inspect --format '{{.State.Health.Status}}' jarca-mcp-smoke)" = healthy
+
+          docker run -d --name jarca-dashboard-smoke --platform linux/arm64 \
+            -p 127.0.0.1::8501 jarca-ledger-mcp:arm64-verify \
+            python -m streamlit run dashboard/app.py \
+            --server.address 0.0.0.0 --server.port 8501 \
+            --server.headless true --browser.gatherUsageStats false
+          port=$(docker port jarca-dashboard-smoke 8501/tcp | sed 's/.*://')
+          code=000
+          for _ in $(seq 1 90); do
+            code=$(curl -sS -o /tmp/dashboard-health -w '%{http_code}' \
+              "http://127.0.0.1:${port}/_stcore/health" || true)
+            test "$code" = 200 && break
+            sleep 1
+          done
+          test "$code" = 200
+          test "$(tr -d '\n' < /tmp/dashboard-health)" = ok
+
+  publish:
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: verify-arm64
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    outputs:
+      digest: ${{ steps.build.outputs.digest }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and publish immutable ARM64 image
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/arm64
+          push: true
+          tags: |
+            ghcr.io/genichin/jarca-ledger-mcp:${{ github.ref_name }}
+            ghcr.io/genichin/jarca-ledger-mcp:sha-${{ github.sha }}
+          labels: |
+            org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.version=${{ github.ref_name }}
+          cache-from: type=gha,scope=jarca-ledger-arm64
+          cache-to: type=gha,mode=max,scope=jarca-ledger-arm64
+          provenance: mode=max
+          sbom: true
+
+      - name: Report published digest
+        run: |
+          echo "ghcr.io/genichin/jarca-ledger-mcp:${GITHUB_REF_NAME}@${{ steps.build.outputs.digest }}"
diff --git a/Dockerfile b/Dockerfile
index bd1d846..020e9b2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,21 +1,28 @@
+FROM ghcr.io/astral-sh/uv:0.11.14 AS uv
+
 FROM python:3.12-slim
 
 ENV PYTHONUNBUFFERED=1 \
-    PIP_NO_CACHE_DIR=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    UV_COMPILE_BYTECODE=1 \
+    UV_LINK_MODE=copy \
     JARCA_LEDGER_DB_PATH=/data/ledger.sqlite3 \
     JARCA_MCP_TRANSPORT=streamable-http \
     JARCA_MCP_HOST=0.0.0.0 \
     JARCA_MCP_PORT=8000 \
-    JARCA_MCP_STREAMABLE_HTTP_PATH=/mcp
+    JARCA_MCP_STREAMABLE_HTTP_PATH=/mcp \
+    PATH=/app/.venv/bin:$PATH
+
+COPY --from=uv /uv /uvx /usr/local/bin/
 
 WORKDIR /app
 
-COPY pyproject.toml README.md ./
+COPY pyproject.toml uv.lock README.md ./
+RUN uv sync --frozen --no-dev --extra dashboard --no-install-project
+
 COPY jarca_ledger_mcp ./jarca_ledger_mcp
 COPY dashboard ./dashboard
-
-RUN python -m pip install --upgrade pip \
-    && python -m pip install '.[dashboard]'
+RUN uv sync --frozen --no-dev --extra dashboard
 
 VOLUME ["/data"]
 EXPOSE 8000 8501