If chown fails during container setup, then a warning will be shown

backend/entrypoint.sh

@@ -10,7 +10,7 @@ fi
 
 # chown current working directory to current user
 if [ "$*" = "$CMD" ] && [ "$(id -u)" = "0" ]; then
-  find . \! -user "$UID" -exec chown "$UID:$GID" -R '{}' + || true
+  find . \! -user "$UID" -exec chown "$UID:$GID" -R '{}' + || echo "WARNING! Could not change directory ownership. If you manage permissions externally this is fine, otherwise you may experience issues when downloading or deleting videos."
   exec su-exec "$UID:$GID" "$0" "$@"
 fi