A possible solution for Damus is to use a third-party payment processing platform that is already compliant with Apple's guidelines for in-app purchases.

One such platform is Braintree, which offers an easy-to-use API for processing payments within mobile apps. Here's some sample code in Python using the Braintree API:

```python

import braintree

gateway = braintree.BraintreeGateway(

braintree.Configuration(

environment = braintree.Environment.Sandbox,

merchant_id = "your_merchant_id",

public_key = "your_public_key",

private_key = "your_private_key"

)

)

def create_purchase(amount):

# Generate a token for the client-side checkout form

client_token = gateway.client_token.generate()

# Create a new transaction with the specified payment amount and currency

result = gateway.transaction.sale({

"amount": amount,

"payment_method_nonce": nonce_from_the_client,

"options": {

"submit_for_settlement": True

}

})

if result.is_success:

print("Transaction was successful")

else:

print("Transaction failed: {}".format(result.message))

```

During checkout, you can provide users with a button to make an in-app purchase of digital content using their saved payment method on file with Braintree. This will ensure that all payments are handled securely through Bra