diff --git a/squashkiwi-streaming/config/overlay/Dockerfile b/squashkiwi-streaming/config/overlay/Dockerfile
index 91af08c..4c3e0a9 100644
--- a/squashkiwi-streaming/config/overlay/Dockerfile
+++ b/squashkiwi-streaming/config/overlay/Dockerfile
@@ -20,10 +20,11 @@ COPY overlay_service.py .
 # Create recordings directory
 RUN mkdir -p /recordings
 
-# Run as non-root user
+# Create user but don't switch to it - need root for shared volume
 RUN useradd -m -s /bin/bash overlay && \
     chown -R overlay:overlay /app /recordings
-USER overlay
+# Running as root to access shared /tmp volume
+# USER overlay
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
diff --git a/squashkiwi-streaming/config/overlay/overlay_service.py b/squashkiwi-streaming/config/overlay/overlay_service.py
index 31be1fd..1c7aa24 100644
--- a/squashkiwi-streaming/config/overlay/overlay_service.py
+++ b/squashkiwi-streaming/config/overlay/overlay_service.py
@@ -246,8 +246,20 @@ class ScoreOverlayService:
         
         # Initialize overlay text
         court_name = os.getenv('COURT_NAME', f'Court {self.court_number}')
-        with open('/tmp/score.txt', 'w') as f:
-            f.write(f"{court_name} - Waiting for match...")
+        try:
+            # Create file with write permissions for all
+            with open('/tmp/score.txt', 'w') as f:
+                f.write(f"{court_name} - Waiting for match...")
+            os.chmod('/tmp/score.txt', 0o666)
+        except PermissionError:
+            # If file exists and we can't write, try to remove and recreate
+            try:
+                os.remove('/tmp/score.txt')
+                with open('/tmp/score.txt', 'w') as f:
+                    f.write(f"{court_name} - Waiting for match...")
+                os.chmod('/tmp/score.txt', 0o666)
+            except:
+                logger.error("Cannot create score.txt file - check permissions")
         
         await self.cleanup_old_recordings()
         last_cleanup = datetime.now()