Magento2.4 How to add product to cart with a customizable option?

I am trying to add a product to cart with a customizable option. I can add simple products, but I have not successfully been able to add a product with an option. The product will eventually be added dynamically but I just want a hard coded example right now to build off of.

Custom options are:

I would prefer just a simple objectManager example that will work in a phtml file to keep things simple and straight forward. But I will appreciate/accept any answer that works.

My current code:

$productId = 4;
$obj = MagentoFrameworkAppObjectManager::getInstance();
$product = $viewModel->getLoadProduct($productId);
$cart = $obj->create('MagentoCheckoutModelCart');    
$params = array();      
$params['qty'] = 10;
$params['product'] = $productId;
$options = array();
$options['title'] = 'Rustic';
$params['options'] = $options;
$cart->addProduct($product, $params);
$cart->save();

I get this error:

Exception #0 (MagentoFrameworkExceptionLocalizedException): The product's required option(s) weren't entered. Make sure the options are entered and try again.