Filament: Roles: Broker vs Investor in Single Panel

In the Panel Provider we enable registration and pass an action as our own custom registration page.

app/Providers/Filament/AdminPanelProvider.php:

use App\Filament\Pages\Auth\Register;
 
class AdminPanelProvider extends PanelProvider
{
    public function panel(Panel $panel): Panel
    {
        return $panel
            ->default()
            ->id('admin')
            ->path('admin')
            ->login()
            ->registration(Register::class) 
            // ...
    }
}

The registration page must extend the registration page from the Filament. In the register page, we add a radio select field for the role and set the default role to the Broker.

App/Filament/Pages/Auth/Register.php:

use App\Models\Role;
use Filament\Forms\Form;
use Filament\Forms\Components\Radio;
use Filament\Forms\Components\Component;
use Filament\Pages\Auth\Register as BaseRegister;
 
class Register extends BaseRegister
{
    public function form(Form $form): Form
    {
        return $form
            ->schema([
              // ....

We also have an example of how to do this using Multiple Panels