This guide documents the complete setup to configure the VOTTAN NFC Reader (Shopee Product Link) (USB HID Keyboard emulation, Vendor ID: 34bf, Product ID: ff03) as an authentication factor using Linux Pluggable Authentication Modules (PAM) and pure Bash/evtest.
PS: This is based on my conversation with Google Gemini AI.
Install input-utils and evtest to allow capturing and grabbing raw input events directly from the device:
