feat: add formatter

system/dev/generic/hardware-configuration.nix

@@ -1,12 +1,21 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, pkgs, modulesPath, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
 
 {
   imports = [ ];
 
-  boot.initrd.availableKernelModules = [ "virtio_scsi" "sd_mod" ];
+  boot.initrd.availableKernelModules = [
+    "virtio_scsi"
+    "sd_mod"
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ ];
   boot.extraModulePackages = [ ];