At SAP we wanted to provide an extensibility platform that would enable customers to extend our software in cloud native way in programming language they want to use. As a result we created an open source project called Kyma that extends Kubernetes and makes it very easy to integrate monoliths into it. In my talk I want to explain how we adopted specifications to enable easy extensibility. You will learn what were our use cases and how we addressed them by enabling default support for specs like OpenAPI or OData. I will also explain how AsyncAPI helped us to have event driven extensibility as a central part of Kyma.