more improvements

systems/x86_64-linux/nix-builder/default.nix

@@ -7,7 +7,8 @@
 { config, pkgs, ... }:
 
 {
-  imports = [ # Include the results of the hardware scan.
+  imports = [
+    # Include the results of the hardware scan.
     ./hardware-configuration.nix
   ];
 
@@ -54,20 +55,26 @@
   users.users.nix = {
     isNormalUser = true;
     description = "Nix";
-    extraGroups = [ "networkmanager" "wheel" ];
+    extraGroups = [
+      "networkmanager"
+      "wheel"
+    ];
     packages = with pkgs; [ ];
   };
 
   nix.settings.trusted-users = [ "@wheel" ];
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
 
   # Setup binary caches
   nix.settings = {
-    substituters =
-      [ "https://nix-community.cachix.org" "https://cache.nixos.org/" ];
-    trusted-public-keys = [
-      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+    substituters = [
+      "https://nix-community.cachix.org"
+      "https://cache.nixos.org/"
     ];
+    trusted-public-keys = [ "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=" ];
   };
 
   # optimize store by hardlinking store files
@@ -89,7 +96,11 @@
 
   # List packages installed in system profile. To search, run:
   # $ nix search wget
-  environment.systemPackages = with pkgs; [ vim htop mc ];
+  environment.systemPackages = with pkgs; [
+    vim
+    htop
+    mc
+  ];
 
   # Enable the OpenSSH daemon.
   services.openssh.enable = true;
@@ -99,7 +110,7 @@
     acceleration = "cuda";
   };
 
-  security.pam.enableSSHAgentAuth = true; # enable sudo logins via ssh
+  security.pam.sshAgentAuth = true; # enable sudo logins via ssh
 
   # Open ports in the firewall.
   # networking.firewall.allowedTCPPorts = [ ... ];
@@ -114,5 +125,4 @@
   # Before changing this value read the documentation for this option
   # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
   system.stateVersion = "23.11"; # Did you read the comment?
-
 }