save

nixos/hardware/biometric/elan-fingerprint.nix

@@ -6,4 +6,9 @@
         tod.enable = true;
         tod.driver = pkgs.libfprint-2-tod1-elan;
     };
+
+    security.pam.services = {
+        sudo.fprintAuth = true;
+        polkit-1.fprintAuth = true;
+    };
 }