Chrome web store payments replacement services

Today google have announced that the chrome web store payment system is deprecated.
More info: https://developer.chrome.com/webstore/cws-payments-deprecation

They will remove the support for licensing API and in-app payments for all the product that are published into the CWS. This means that we developers need to migrate to a new way to monetize our published extensions.

I've started looking for a service that can replace the one offered from google for the payments and licensing, but I want to know how other developers will solve this problem. How do you will replace the Chrome web store payments and licensing api?