Format using nixfmt rfc style

hosts/rpi3/default.nix

@@ -1,23 +1,28 @@
-{ inputs, pkgs, ... }: {
+{ inputs, pkgs, ... }:
+{
 
   nix = {
     registry.nixpkgs.flake = inputs.nixpkgs;
     nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
   };
 
-  boot.loader.grub.enable = false;
-  boot.loader.generic-extlinux-compatible.enable = true;
-  boot.kernelParams = [ "cma=256M" ];
+  boot = {
+    loader.grub.enable = false;
+    loader.generic-extlinux-compatible.enable = true;
+    kernelParams = [ "cma=256M" ];
+  };
 
   fileSystems."/" = {
     device = "/dev/disk/by-label/NIXOS_SD";
     fsType = "ext4";
   };
 
-  swapDevices = [{
-    device = "/swapfile";
-    size = 1024;
-  }];
+  swapDevices = [
+    {
+      device = "/swapfile";
+      size = 1024;
+    }
+  ];
 
   services.openssh.enable = true;
   users.users.root.openssh.authorizedKeys.keyFiles = [
@@ -33,15 +38,20 @@
     mutableSettings = false;
 
     settings = {
-      http = { address = "0.0.0.0:80"; };
+      http = {
+        address = "0.0.0.0:80";
+      };
       auth_attempts = 5;
       block_auth_min = 15;
       dns = {
         bind_hosts = [ "0.0.0.0" ];
         port = 53;
         statistics_interval = 90;
-        upstream_dns =
-          [ "tls://doh.mullvad.net" "[/lan/]192.168.1.1" "[//]192.168.1.1" ];
+        upstream_dns = [
+          "tls://doh.mullvad.net"
+          "[/lan/]192.168.1.1"
+          "[//]192.168.1.1"
+        ];
         local_ptr_upstreams = [ "192.168.1.1" ];
         use_private_ptr_resolvers = true;
         resolve_clients = true;
@@ -64,11 +74,19 @@
     };
   };
 
-  networking.hostName = "rpi3";
-  networking.firewall.allowedTCPPorts = [ 53 80 ];
-  networking.firewall.allowedUDPPorts = [ 53 ];
+  networking = {
+    hostName = "rpi3";
+    firewall.allowedTCPPorts = [
+      53
+      80
+    ];
+    firewall.allowedUDPPorts = [ 53 ];
+  };
 
-  environment.systemPackages = with pkgs; [ vim htop-vim ];
+  environment.systemPackages = with pkgs; [
+    vim
+    htop-vim
+  ];
 
   system.stateVersion = "22.05";
 }