Infrastructure, DevOps, and platform engineering — from first principles to real projects.
Understand every component by tracing reconciliation loops, declarative state, and the full request lifecycle — with live diagrams.
Build immutable images, understand namespaces & cgroups, and trace a request from source code to one HTTP response.
Build one application across IAM, VPC, EC2, S3, ECR, ECS, EKS, Terraform, CI/CD — from a laptop process to production.
Learn why Terraform wants to destroy things. Master the three-world model, state, graphs, modules, and safe refactoring.
Build the Receipt API across five projects — GitOps platform, platform-as-product, observability, multi-environment, and a K8s operator.