Add Dockerfile.m4 for Mac mini M4 support

Dockerfile.m4

@@ -0,0 +1,55 @@
+ARG BASE_IMAGE=ubuntu:24.04
+FROM ${BASE_IMAGE}
+
+# Dependencies
+# ffmpeg is needed for audio processing
+# curl/ca-certificates for downloads
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    ffmpeg \
+    && apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# User setup (matching original)
+RUN useradd --create-home --shell /bin/bash --uid 1000 ubuntu || true
+USER ubuntu
+ENV HOME=/home/ubuntu \
+    PATH=/home/ubuntu/.local/bin:$PATH
+WORKDIR $HOME/speaches
+
+# Install uv (Python package manager)
+COPY --chown=ubuntu --from=ghcr.io/astral-sh/uv:0.8.22 /uv /bin/uv
+
+# Install dependencies using uv
+# --mount=type=cache is supported by default in Docker Desktop for Mac
+RUN --mount=type=cache,target=/root/.cache/uv \
+    --mount=type=bind,source=uv.lock,target=uv.lock \
+    --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
+    uv sync --frozen --compile-bytecode --no-install-project --no-dev
+
+# Copy source code
+COPY --chown=ubuntu . .
+
+# Final sync to install the project itself (if needed) or verify
+RUN --mount=type=cache,target=/root/.cache/uv \
+    uv sync --frozen --compile-bytecode --no-dev
+
+# Create cache directory for HuggingFace
+RUN mkdir -p $HOME/.cache/huggingface/hub
+
+# Environment variables
+ENV UVICORN_HOST=0.0.0.0
+ENV UVICORN_PORT=8000
+ENV PATH="$HOME/speaches/.venv/bin:$PATH"
+# Disable HF transfer acceleration as it can be problematic in containers
+ENV HF_HUB_ENABLE_HF_TRANSFER=0
+# Privacy settings
+ENV DO_NOT_TRACK=1
+ENV GRADIO_ANALYTICS_ENABLED="False"
+ENV DISABLE_TELEMETRY=1
+ENV HF_HUB_DISABLE_TELEMETRY=1
+
+EXPOSE 8000
+CMD ["uvicorn", "--factory", "speaches.main:create_app"]