A PAM plugin for authenticating using the new kLAPolicyDeviceOwnerAuthenticationWithBiometricsOrWatch API in macOS 10.15, written in Swift.

1. $ sudo make install
2. Edit /etc/pam.d/sudo to include as the first line: auth sufficient pam_watchid.so "reason=execute a command as root"

Note that you might have other auth, don't remove them.