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Why Your Markdown Links Break in Production (And How to Catch Them Without Going Online)
Static, network-free lint for every link shape Markdown supports — seven rules in Basic, ten in Strict, ready for pre-commit and CI.
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The .env File That Passed Review and Broke Production
A config mistake can hide in plain sight At 09:12, a deployment fails before the…
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Turn Excel into a Markdown Table Reviewers Can Read
A spreadsheet can hold the right answer and still be the wrong artifact. Attach an…
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The Five Forms of ISO 8601 You Will Actually Meet: A Field Guide to the Date Format That Is Actually Five Formats
The ISO 8601 standard is not one format — it is a family of five. Here is how to tell them apart, why the trailing Z matters, and what a real validator actually checks.
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When a Photograph Needs to Feel Like a 1970s Print: A Field Guide to Image Solarize Effect
Closing thought: what solarization is actually good for If you want a photograph that feels…
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When a Photograph Needs to Feel Like a 1970s Print: A Field Guide to Image Solarize Effect
Closing thought: what solarization is actually good for If you want a photograph that feels…
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Stop Typing Excel Formulas from Memory: A Field Guide to the Twelve Functions You Actually Use
A formula builder for the twelve Excel functions that cover 90% of everyday spreadsheet work — pick, fill, paste, audit the logic instead of the syntax.
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Why Your XML Output Looks Wrong to a Stranger: A Field Guide to XML Formatter
Beautify, minify, and the four serializer decisions the XML spec deliberately leaves undefined — what a DOM-aware formatter actually changes.
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What an IP address can tell you, and the four things it cannot
What an IP address can tell you, and the four things it cannot A SOC…
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Cleaning messy data with an AI that respects the schema you already have
The fastest way to ruin a dataset is to clean it without reading it first.…