Switch to Docker SDK on HF Space — full control over launch, no auto-launcher

Dockerfile

@@ -0,0 +1,34 @@
+FROM python:3.10-slim
+
+# System deps for Pillow (libjpeg, zlib) + curl for healthcheck.
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libjpeg-dev \
+    zlib1g-dev \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# HF Spaces require a non-root user with $HOME=/home/user.
+RUN useradd -m -u 1000 user
+USER user
+ENV HOME=/home/user PATH=/home/user/.local/bin:$PATH
+WORKDIR $HOME/app
+
+# Install Python deps first so they cache across code changes.
+COPY --chown=user requirements.txt requirements.txt
+RUN pip install --no-cache-dir --user -r requirements.txt
+
+# Copy the rest of the app.
+COPY --chown=user . .
+
+# HF Spaces routes external traffic to port 7860 inside the container.
+EXPOSE 7860
+
+# Bind to 0.0.0.0 so HF's proxy can reach us. Disable Gradio's analytics
+# (it tries to phone home and slows boot). ORACLES_FORCE_MOCK is left
+# unset so the app uses the real Modal LLM when the secrets are present.
+ENV GRADIO_SERVER_NAME=0.0.0.0 \
+    GRADIO_SERVER_PORT=7860 \
+    GRADIO_ANALYTICS_ENABLED=False \
+    PYTHONUNBUFFERED=1
+
+CMD ["python", "app.py"]

README.md

@@ -3,11 +3,9 @@ title: The Apprentice
 emoji: 🌲
 colorFrom: indigo
 colorTo: yellow
-sdk: gradio
-sdk_version: 5.29.1
-python_version: "3.10"
+sdk: docker
+app_port: 7860
 suggested_hardware: cpu-basic
-app_file: app.py
 pinned: false
 license: mit
 short_description: Five oracles, five trials — branching pixel-art game.