diff --git a/hub/setup-opds.sh b/hub/setup-opds.sh
index c42ce55..ade5951 100755
--- a/hub/setup-opds.sh
+++ b/hub/setup-opds.sh
@@ -189,9 +189,9 @@ dir2opds)
         --name dir2opds \
         --restart unless-stopped \
         --network opds-net \
-        -v "${BOOKS_PATH}:/books:ro" \
+        --mount "type=bind,source=${BOOKS_PATH},target=/books,readonly" \
         "$OPDS_IMAGE" \
-        /dir2opds -dir /books -hide-dot-files
+        /dir2opds -dir /books -hide-dot-files -calibre
     ;;
 stump)
     mkdir -p "${OPDS_DIR}/stump-config"
@@ -319,7 +319,7 @@ fi
 EOF
 chmod +x "$WATCHDOG_SCRIPT"
 
-CRON_LINE="@reboot sleep 30 && $WATCHDOG_SCRIPT"
+CRON_LINE="@reboot sleep 120 && $WATCHDOG_SCRIPT"
 EXISTING_ROOT_CRON=$(crontab -l 2>/dev/null || true)
 if ! echo "$EXISTING_ROOT_CRON" | grep -qF "opds-watchdog"; then
     { echo "$EXISTING_ROOT_CRON"; echo "$CRON_LINE"; } | crontab -