Essentials

You already manage production systems. Essentials covers the tools you reach for constantly but never formally learned end to end — Git past "commit and push," and seeing what's actually on the wire when an API call doesn't do what you expected.

• Git Series

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  Git for Beginners and Git Clone, Push & Pull — the three states, your first repository, and working with remotes as a team, not just solo.

• Web Tools

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  How to Inspect HTTP Traffic — curl -v and browser DevTools, for the headers and status codes a plain response body doesn't show you.

More Essentials topics — jq, yq, Vim survival mode, regex for SREs, and terminal diagnostics — are still on the way.

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Start with Git for Beginners if Git itself is still shaky, or jump straight to How to Inspect HTTP Traffic if you're debugging an API right now.