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+# =============================================================================
+# yt-local — multi-stage, non-root, Tor-ready
+# =============================================================================
+
+# --------------- build stage ---------------
+FROM python:3.11-alpine AS builder
+
+ENV PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    PYTHONDONTWRITEBYTECODE=1
+
+RUN apk add --no-cache build-base libffi-dev
+
+COPY requirements.txt /tmp/requirements.txt
+RUN pip install --prefix=/install --no-cache-dir -r /tmp/requirements.txt
+
+# --------------- runtime stage ---------------
+FROM python:3.11-alpine
+
+LABEL maintainer="heckyel@riseup.net"
+LABEL org.opencontainers.image.source="https://git.sr.ht/~heckyel/yt-local"
+LABEL org.opencontainers.image.licenses="AGPL-3.0"
+
+ENV LANG=C.UTF-8 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    HOME=/home/appuser
+
+# tor package creates its own tor user/group and /var/lib/tor
+# su-exec for privilege drop in entrypoint
+RUN apk add --no-cache tor su-exec
+
+# App user (non-root)
+RUN addgroup -g 1000 -S appgroup \
+ && adduser  -u 1000 -S appuser -G appgroup -h /home/appuser
+
+# Python packages from builder
+COPY --from=builder /install /usr/local
+
+# Application source (root-owned, read-only for appuser)
+WORKDIR /srv/app
+COPY --chown=root:root . /srv/app/
+
+# Compile translations (.po → .mo)
+RUN python manage_translations.py compile
+
+# Persistent data dir (settings.txt, data/, etc.)
+RUN mkdir -p /home/appuser/.yt-local/data \
+ && chown -R appuser:appgroup /home/appuser/.yt-local \
+ && chmod 750 /home/appuser/.yt-local
+
+VOLUME /home/appuser/.yt-local
+
+# Tor: fix perms on dirs already created by apk
+RUN chown tor:tor /var/lib/tor /var/log/tor \
+ && chmod 700 /var/lib/tor /var/log/tor
+
+# Entrypoints (root-owned, executable)
+COPY --chmod=755 entrypoint.sh entrypoint-tor.sh /
+
+EXPOSE 9010
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
+    CMD sh -c 'python -c "import urllib.request; urllib.request.urlopen(\"http://127.0.0.1:9010\")"'
+
+ENTRYPOINT ["/entrypoint.sh"]