Simon Willison's Weblog simonwillison.net

Useful patterns for building HTML tools

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The Normalization of Deviance in AI

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Dark mode

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10 Years of Let's Encrypt

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Devstral 2

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Under the hood of Canada Spends with Brendan Samek

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Agentic AI Foundation

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mistralai/mistral-vibe

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Quoting Claude

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Prediction: AI will make formal verification go mainstream

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Deprecations via warnings don’t work for Python libraries

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Niche Museums: The Museum of Jurassic Technology

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Quoting Cory Doctorow

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Using LLMs at Oxide

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Quoting David Crespo

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The Unexpected Effectiveness of One-Shot Decompilation with Claude

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Quoting Daniel Lemire

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TIL: Subtests in pytest 9.0.0+

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Thoughts on Go vs. Rust vs. Zig

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The Resonant Computing Manifesto

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