Update Dockerfile

Dockerfile

@@ -1,19 +1,25 @@
 FROM python:3.11-slim
 
 WORKDIR /app
-
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# ffmpeg + libsndfile for decoding
+# OS deps
 RUN apt-get update && apt-get install -y --no-install-recommends \
     ffmpeg libsndfile1 && rm -rf /var/lib/apt/lists/*
 
-# Ensure model caches are writable inside Spaces
-ENV HF_HOME=/tmp/hf
-ENV HUGGINGFACE_HUB_CACHE=/tmp/hf
-ENV XDG_CACHE_HOME=/tmp/.cache
-RUN mkdir -p /tmp/hf /tmp/.cache
+# Force all caches to writable, persistent storage
+ENV HF_HOME=/data/hf
+ENV HUGGINGFACE_HUB_CACHE=/data/hf
+ENV XDG_CACHE_HOME=/data/.cache
+RUN mkdir -p /data/hf /data/.cache && chmod -R 777 /data
+
+# Pre-download the tiny.en model into /data to avoid runtime writes
+RUN python - <<'PY'
+from faster_whisper.utils import download_model
+download_model("tiny.en", cache_dir="/data/hf")
+print("Model pre-fetched into /data/hf")
+PY
 
 COPY app.py .