Check the requirements.
Use macOS 14 or later and review the compatibility evidence. The current installer is a local test build with physical-phone regression still pending.
Connect your iPhone.
Connect using a USB data cable, unlock the iPhone and confirm Trust This Computer. Check that the app identifies the intended device.
Choose your path.
For Wallet, start Scan Cards and open the intended card on the iPhone. For passcode art, import a .passthm theme or use Theme Creator.
Send artwork and check the result.
Inspect the target and preview before applying. After the transfer, follow the relevant refresh steps and check Wallet or the lock-screen keypad on the phone. Scanning continues until you explicitly stop it.