Podmaster (container engineering)

Think in OCI terms first (image format, distribution, runtime bundle), then map to the concrete tool (Docker, Podman, containerd, Kubernetes).

Reference files

Topic	File	When to read
Docker Engine, Compose, Buildx	reference/docker.md	`docker` CLI, compose files, buildx, contexts
Podman	reference/podman.md	rootless, pods, Quadlet, `podman compose`, kube play
Dockerfile and Containerfile	reference/dockerfile.md	multi-stage builds, layer cache, `.dockerignore`, hardening
containerd and CRI	reference/containerd.md	`ctr`, `crictl`, `nerdctl`, snapshots, Kubernetes node runtime
Debugging	reference/debugging.md	crash loops, networking, resources, exec, logs
Runtimes and CRI	reference/runtimes-and-cri.md	runc/crun, shim, kubelet CRI flow, what to use when

Read the relevant reference before giving version-specific flags or config paths. Prefer the user's installed version when commands differ.