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Playground catalog
Choose a track and start practicing in a guided playground.
Linux Foundations
Foundational shell fluency for every cloud-native track.
Build shell confidence through guided drills, quick checks, and repeatable playground challenges.
Guided playground
Docker Foundations
Build and debug containers inside a Docker-enabled playground.
Learn rootless container workflows through short drills that build, run, inspect, and clean up images.
Guided playground
Kubernetes Manifests
Validate YAML, kustomize overlays, and Helm charts without needing a cluster.
Practice manifest rendering and validation with local tooling before you move to a live cluster.
Guided playground