callisto

Learn infrastructure
by building it

Flashcards for the concepts. Guided projects for the muscle memory. AI when you get stuck. From Docker basics to production Kubernetes — on your own hardware.

Everything you need to master DevOps

Flashcards

Spaced repetition cards for IaC concepts. Lock in the theory before you touch the keyboard.

Guided Projects

Step-by-step labs: Docker, Kubernetes, Terraform, CI/CD. Build real infrastructure, not toy examples.

AI Assistance

Stuck on a concept? Ask the AI tutor. Bring your own API key or use platform credits.

Self-Hosted First

Learn on your own hardware. Every project runs on real infrastructure you control.

CLI + Web

Manage labs from the terminal or the browser. Both are first-class citizens.

Production Ready

8-tier curriculum from Linux basics to production architecture. No hand-waving.

13 domains

Covering the full IaC and DevOps stack.

Linux & ShellDockerKubernetesTerraformAnsibleCI/CDGitOpsNetworkingSecurityObservabilityCloud ProvidersDatabasesService Mesh

Ready to learn infrastructure the right way?

7-day free trial. No credit card required.