use Hoggarcrud\Hoggar\Fields\Repeater;
use Hoggarcrud\Hoggar\Fields\TextInput;

$this->form([
    Repeater::make('members')
        ->form([
            TextInput::make('name')
        ])
        ->lines(2) // optional number of lines, 1 by default
        ->draggable(false) // optional, true by default
        ->addLine(false) // optional, true by default
        ->removeLine(false) // optional, true by default
        ->min(2) // optional, 0 by default
        ->max(2) // optional, unlimited by default
        ->grid(3) // optional, 1 by default
        ->notInDatabase() // optional, if you don't want this field in database
]);

               
use Illuminate\Database\Eloquent\Model;

      class Post extends Model
      {
      protected $casts = [
      'members' => 'array',
      ];

               }

$request->validate([
    'members.*.name' => ['required'],
],
[],
[
    'members.*.name' => 'name' // 'name' will replace 'members.*.name'
]
);