Use Z-Wave SmartStart?

Please see + vote for related feature request asking for QR code tags scanning for joining new Zigbee 3.0 devices which if implemented could most likely be reused for SmartStart inclusion in Z-Wave JS:

https://community.home-assistant.io/t/request-qr-code-tags-scanning-for-joining-new-zigbee-3-0-device-and-z-wave-plus-v2-to-home-assistant-zha-and-z-wave-js-integration-component-via-ui-and-companion-apps/231185/

and also checkout start of Z-Wave Js discussion here:

https://github.com/zwave-js/node-zwave-js/discussions/3381