incr/app/Http/Controllers/Auth/RegisteredUserController.php

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use App\Models\User;
use Illuminate\Auth\Events\Registered;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;
use Illuminate\Validation\Rules;
use Illuminate\Validation\ValidationException;
use Inertia\Inertia;
use Inertia\Response;

class RegisteredUserController extends Controller
{
    /**
     * Show the registration page.
     */
    public function create(): Response
    {
        if (User::exists()) {
            abort(403, 'Registration is disabled.');
        }

        return Inertia::render('auth/register');
    }

    /**
     * Handle an incoming registration request.
     *
     * @throws ValidationException
     */
    public function store(Request $request): RedirectResponse
    {
        if (User::exists()) {
            abort(403, 'Registration is disabled.');
        }

        $validated = $request->validate([
            'name' => 'required|string|max:255',
            'email' => 'required|string|lowercase|email|max:255|unique:'.User::class,
            'password' => ['required', 'confirmed', Rules\Password::defaults()],
        ]);

        $user = User::forceCreate([
            'name' => $validated['name'],
            'email' => $validated['email'],
            'password' => Hash::make($validated['password']),
        ]);

        event(new Registered($user));

        Auth::login($user);

        return redirect()->intended(route('dashboard', absolute: false));
    }
}