.

Dockerfile

@@ -8,9 +8,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 RUN curl -LsSf https://astral.sh/uv/install.sh | sh
 ENV PATH="/root/.local/bin:${PATH}"
 
-# 👇 set uv cache dir and make sure it's writable
-ENV UV_CACHE_DIR=/tmp/uvcache
-RUN mkdir -p /tmp/uvcache && chmod -R 777 /tmp/uvcache
+# 👇 safer cache location inside the app folder
+ENV UV_CACHE_DIR=/app/.uvcache
+RUN mkdir -p /app/.uvcache && chmod -R 777 /app/.uvcache
 
 WORKDIR /app
 COPY . .
@@ -19,5 +19,5 @@ RUN uv sync --frozen
 
 EXPOSE 7860
 
-# Hugging Face exposes port via $PORT, so respect that
+# Respect Hugging Face's $PORT
 CMD ["uv", "run", "chainlit", "run", "src/study_chatbot/app.py", "--host", "0.0.0.0", "--port", "$PORT"]