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Developer Reference Cheat Sheet Pack - Regex, SQL, YAML, cURL, Markdown PDF Guides

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Highlights

A digital pack of 7 quick-reference cheat sheets for everyday development work, each included in a standard and a light (print-friendly) PDF variant:

- Regex reference
- SQL reference
- YAML & JSON reference
- cURL reference
- Markdown reference
- HTTP status codes reference
- Text processing reference

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Listed on 21 Aug, 2026
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