{ config, lib, pkgs, ... }: { options.common.hardware.smartcard.enable = lib.mkEnableOption "smartcard spport"; config = lib.mkIf config.common.hardware.smartcard.enable { services = { pcscd.enable = true; udev.packages = with pkgs; [ libu2f-host ]; dbus.packages = with pkgs; [ gcr ]; }; }; }