Infrastructure
Writing a Dockerfile That Does Not Weigh 2GB
Why Docker images get bloated, how layer caching works in practice, and the specific techniques that produce small, fast, secure images without sacrificing developer experience.
Infrastructure
CI/CD from Zero: A Working Pipeline with GitHub Actions
What CI/CD actually is, why it matters, and how to build a real pipeline from scratch using GitHub Actions that runs tests, builds artifacts, and deploys automatically.
Infrastructure
Docker from Scratch: Images, Containers, and Registries
What Docker actually is under the hood - from a Dockerfile to a running container, and where registries fit in.
Infrastructure
Linux for Developers Who Aren't Sysadmins
You don't need to be a sysadmin to be effective on Linux - you need to understand processes, file descriptors, permissions, and signals well enough to debug what goes wrong in production.