refactor: Module to ugaif and readme update

installer/auto-install.nix

@@ -1,7 +1,17 @@
 # This module defines a systemd service that automatically installs NixOS to the disk.
 # It is intended to be used in an installation ISO.
 # It expects `targetSystem` (the closure to install) and `diskoScript` (the partitioning script) to be passed as arguments.
-{ config, lib, pkgs, inputs, hostName, hostPlatform, targetSystem, diskoScript, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  inputs,
+  hostName,
+  hostPlatform,
+  targetSystem,
+  diskoScript,
+  ...
+}:
 {
   environment.systemPackages = [
     pkgs.git
@@ -14,7 +24,10 @@
 
   systemd.services.auto-install = {
     description = "Automatic NixOS install for ${hostName}";
-    after = [ "network-online.target" "systemd-udev-settle.service" ];
+    after = [
+      "network-online.target"
+      "systemd-udev-settle.service"
+    ];
     wants = [ "network-online.target" ];
     wantedBy = [ "multi-user.target" ];