If you have printed the Matter QR Code for your Smart Controller, point your camera at it to scan it. Otherwise, tap More options…, then tap Matter Accessory.

Is your Neo Smart Blinds Controller not appearing as a nearby accessory?
The integration fails after tapping on the nearby Smart ControllerFor easy reference, we recommend renaming the device to “Smart Controller.” If you have multiple Smart Controllers, add the last 3-4 digits of its serial number to the name for differentiation. Once renamed, tap Continue.
Note that for larger or distant blinds, the movement might not be visible or audible.
Tap Done, then tap X in the upper-right corner.