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Free · Foundation Pack

Your base layer,mastered.

23 mental models across five tiers — the fundamentals that never expire, in any cloud, tool, or role.

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Linux CLI Fundamentals

Tier 1 · Core Foundations

Begin Tier 1

Why everyone starts here

Most engineers skip foundations and spend years paying for it.

They jump straight to Terraform, Kubernetes, AWS — then fight gaps they can't even name. This pack gives you the mental models experienced engineers rely on every day. Learn them once and they compound forever, in any cloud, tool, or role.

Navigate CLI, networking, and Linux in any cloud environment
Design cloud-native apps with portability and scale in mind
Evaluate architecture trade-offs for cost, latency, and resilience
Manage technical debt like a senior engineer
Apply security best practices across auth, encryption, and IAM
Specialize into DevOps, Platform, or Solutions Architect roles

The curriculum

Five tiers, building on each other.

Tap a tier to see its lessons. Start at Tier 1, finish at Tier 5.

You're halfway through

Enjoying this? Career Paths go even deeper.

Structured role tracks, guided labs, and mentorship for Cloud, DevOps, and SRE.

Preview paths →