add dockerfile

Dockerfile

@@ -0,0 +1,24 @@
+FROM ubuntu:24.04
+
+SHELL ["/bin/bash", "-c"]
+
+RUN --mount=target=/var/lib/apt/lists,type=cache,sharing=locked \
+    --mount=target=/var/cache/apt,type=cache,sharing=locked \
+    rm -f /etc/apt/apt.conf.d/docker-clean && \
+    apt update && \
+    apt install -y espeak-ng ffmpeg python3 python3-pip python3-venv
+
+COPY epub2tts_edge/epub2tts_edge.py requirements.txt setup.py /app/
+
+WORKDIR /app
+
+RUN --mount=type=cache,target=/root/.cache/pip \
+    python3 -m venv .venv && \
+    source .venv/bin/activate && \
+    pip install .
+
+ENV PATH="/app/.venv/bin:$PATH"
+
+ENTRYPOINT [ "python","epub2tts_edge.py" ]
+
+CMD ["--help"]