Explore the end-to-end building of an Internal Development Platform (IDP) on Kubernetes with live coding demonstrations. This session details the architecture of a multi-cluster, multi-environment platform, leveraging Kube Resource Orchestrator (kro) for cloud and cluster management, Argo suite for deployment automation, and Kargo for application promotion workflows. We'll examine how each component - from CI pipelines to GitOps deployments and canary releases - orchestrates into a cohesive developer experience through Backstage. The solution demonstrates intelligent operations using Model Context Protocol (MCP) and establishing a production-grade platform that streamlines application lifecycle management across development, testing, and production environments.