nix fmt with "nixfmt-rfc-style"

modules/main-user.nix

@@ -1,4 +1,9 @@
-{ lib, config, pkgs, ... }:
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
 let
   cfg = config.mainUser;
 in
@@ -37,14 +42,22 @@ in
   config = lib.mkIf cfg.enable {
     users.users.${cfg.userName} = {
       description = cfg.description;
-      extraGroups = [ "users" "wheel" ];
+      extraGroups = [
+        "users"
+        "wheel"
+      ];
       initialHashedPassword = cfg.hashedPassword;
       isNormalUser = true;
       isSystemUser = false;
       shell = pkgs.zsh;
       uid = 1000;
 
-      packages = with pkgs; lib.mkIf cfg.flatpak [ flatpak gnome.gnome-software ];
+      packages =
+        with pkgs;
+        lib.mkIf cfg.flatpak [
+          flatpak
+          gnome.gnome-software
+        ];
     };
 
     console.keyMap = "it";