Config Howdy-Beta for Fedora 39 using GNOME

ConfigHowdyBeta.sh

#!/usr/bin/env bash
set -e

# Configure Fedora PAM to use Howdy for facial recognition
# Configured sudo and GDM login.
# SELinux is also configured to allow Howdy to access necessary resources.
# Notes:
# - This script is tested on Fedora 39.
# - This script is for howdy-beta version, which provides pam_howdy.so
# Reference: https://copr.fedorainfracloud.org/coprs/principis/howdy-beta/

# Based on https://gist.github.com/m1nicrusher/35e79b20553c8863e0c642f8d801da7f

# sudo required
if ! [ "$(id -u)" = 0 ]; then
   echo "Root privilege is needed. Please rerun the script as root." >&2
   exit 1
fi

SUDO_CFG="/etc/pam.d/sudo"
GDM_CFG="/etc/pam.d/gdm-password"
SUDO_PATTERN='1i\' # Append to the first line
GDM_PATTERN='/auth.*substack.*password-auth/i\' # Append before password-auth line

HOWDY_PAM="auth        sufficient    pam_howdy.so"

if ! grep -q "$HOWDY_PAM" "$SUDO_CFG"; then
  echo "Configuring sudo PAM"
  sed -i "$SUDO_PATTERN$HOWDY_PAM" $SUDO_CFG
else
  echo "sudo PAM already configured"
fi

# Configure GDM
if ! grep -q "$HOWDY_PAM" $GDM_CFG; then
  echo "Configuring GDM PAM"
  sed -i "$GDM_PATTERN$HOWDY_PAM" $GDM_CFG
else
  echo "GDM PAM already configured"
fi

echo "Configuring SELinux (this takes a moment)"
MODULE=$(cat << EOF
module howdy 1.0;
require {
    type lib_t;
    type xdm_t;
    type v4l_device_t;
    type sysctl_vm_t;
    class chr_file map;
    class dir { create add_name };
    class file { create getattr open read write };
}
#============= xdm_t ==============
allow xdm_t lib_t:dir create;
allow xdm_t lib_t:dir add_name;
allow xdm_t lib_t:file { create write };
allow xdm_t sysctl_vm_t:file { getattr open read };
allow xdm_t v4l_device_t:chr_file map;
EOF
)

echo "$MODULE" > howdy.te
checkmodule -M -m -o howdy.mod howdy.te
semodule_package -o howdy.pp -m howdy.mod
semodule -i howdy.pp
rm howdy.te howdy.mod howdy.pp

# Done!
echo "Done. Please restart terminal to check sudo result."

This is not working in the latest Fedora 40.

Here its working after Fedora 40 update as well. Same config

I don't know what's wrong with my setup but by running howdy test no error is coming but not working with sudo or gdm. So there is definitely something wrong with pam.d in my case.

What pam file should I edit to enable this for e.g. 1Password app unlock? It already supports unlocking with my Fedora user password.

Look in /etc/pam.d if there is a module file for 1pw

Look in /etc/pam.d if there is a module file for 1pw

is not there this file