sessionCommands = '' ''; { config, pkgs, ... }: { services.pcscd.enable = false; services.udev.packages = [ pkgs.yubikey-personalization pkgs.android-udev-rules ]; security.pam = { services = { login.u2fAuth = true; doas.u2fAuth = true; }; yubico = { enable = true; mode = "challenge-response"; control = "optional"; }; }; environment.systemPackages = with pkgs; [ yubioath-flutter yubikey-personalization ]; }