I teach the way I learned: by building real things, one small step at a time. No slides full of theory. You watch me design, write, test and deploy, then you do it yourself.

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Linux · Unix

A short history of Unix, Linux and Bash: why developers use them (and not Command Prompt)

How Unix was born at Bell Labs, how Linux and macOS descend from it, where MS-DOS and Windows come from, what Bash is, and why Mac and Linux are the natural choice for developers and cloud work.

AWS · API Gateway

AWS API Gateway explained: REST API, resources, stages and Lambda proxy integration

What API Gateway is and why you need it, REST vs HTTP vs WebSocket APIs, resources, methods, stages, integrations, mapping and Lambda proxy integration, with a first API built step by step.

AWS · CDK

AWS CDK constructs explained: L1, L2 and L3, the construct tree, and your first app structure

What a CDK construct is, why every resource takes scope, id and props, the difference between L1 (Cfn), L2 and L3 constructs, and what cdk init generates in bin, lib and cdk.json.

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Linux command line cheat sheet

One printable page: navigation, files, permissions, pipes, processes, scripts and SSH.

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