Kubernetes, commonly known as K8, has revolutionized the way we deploy, scale, and manage containerized applications. A K8 app is an application that is designed to run and be managed on the Kubernetes platform. The beauty of a K8 app is its scalability and flexibility. Kubernetes can automatically scale the application based on the load and manage its health, ensuring high availability. It can also handle the distribution of the app across multiple nodes, helping to optimize resource utilization. Moreover, Kubernetes simplifies complex IT operations. It provides a unified API to deploy the app on different cloud providers and on-premises data centers, abstracting away the underlying infrastructure details. In addition, K8 apps can be easily updated or rolled back, reducing the risk of deployment. Kubernetes also supports service discovery and load balancing, thus improving the app's performance and resilience. In summary, building a K8 app could offer significant benefits for businesses looking to adopt a modern and efficient approach to application development and management.