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@@ -1,13 +1,20 @@
 FROM python:3.11-slim
 
+# HF Spaces runs containers as uid 1000 — ensure ownership
+RUN useradd -m -u 1000 appuser
+
 WORKDIR /app
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
 COPY . .
 
-# Persistent storage bucket mounted at /data
-ENV DATA_DIR=/data
+# Create /data and give appuser ownership so the persistent mount is writable.
+# On HF Spaces the mount overlays /data at runtime — this ensures the fallback works too.
+RUN mkdir -p /data/audio && chown -R 1000:1000 /data
 
+ENV DATA_DIR=/data
 EXPOSE 7860
+
+USER 1000
 CMD ["python", "app.py"]

app.py

@@ -14,8 +14,22 @@ from flask import (
 
 app = Flask(__name__)
 
-# Persistent storage mounted at /data (HF Spaces Storage Bucket)
-DATA_DIR = os.environ.get("DATA_DIR", "/data")
+# Persistent storage mounted at /data (HF Spaces Storage Bucket).
+# Falls back to /tmp if /data is not writable.
+def pick_data_dir():
+    for d in [os.environ.get("DATA_DIR", "/data"), "/tmp/audio_studio"]:
+        try:
+            os.makedirs(os.path.join(d, "audio"), exist_ok=True)
+            test = os.path.join(d, ".write_test")
+            with open(test, "w") as f:
+                f.write("ok")
+            os.remove(test)
+            return d
+        except OSError:
+            continue
+    return "/tmp/audio_studio"
+
+DATA_DIR = pick_data_dir()
 DB_PATH = os.path.join(DATA_DIR, "recordings.db")
 AUDIO_DIR = os.path.join(DATA_DIR, "audio")