echo "RouterOS NPK file exists, attempting to download..."
if wget -nv -O routeros-$LATEST_VERSION$ARCH.npk https://${{ env.CUSTOM_UPGRADE_URL }}/routeros/$LATEST_VERSION/routeros-$LATEST_VERSION$ARCH.npk; then
echo "RouterOS NPK file downloaded successfully."
if wget -nv --spider https://${{ env.CUSTOM_UPGRADE_URL }}/routeros/$LATEST_VERSION/wireless-$LATEST_VERSION$ARCH.npk; then
echo "Wireless NPK file exists, attempting to download..."
if wget -nv -O wireless-$LATEST_VERSION$ARCH.npk https://${{ env.CUSTOM_UPGRADE_URL }}/routeros/$LATEST_VERSION/wireless-$LATEST_VERSION$ARCH.npk; then