1{ 2 config, 3 lib, 4 pkgs, 5 ... 6}: 7let 8 cfg = config.hardware.ledger; 9 10in 11{ 12 options.hardware.ledger.enable = lib.mkEnableOption "udev rules for Ledger devices"; 13 14 config = lib.mkIf cfg.enable { 15 services.udev.packages = [ pkgs.ledger-udev-rules ]; 16 }; 17}