Test Double Blog · Scour

Speed is a side effect of making the system work

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IndyPy Talk: Pydantically perfect in every way

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Pydantically perfect: Declare rich validation rules

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Why product operating model transformations stall—and what to do first

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Anyone can code: Software Is having Its Ratatouille moment

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Power up scripts for Rails apps Part 3: Kubernetes

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Power up with Rails scripts Part 2: Docker

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Power up with Rails scripts Part 1: Environment setup

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Pydantically perfect: Normalize legacy data in Python

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5 rules to avoid the 95% AI project failure rate

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Keep your coding agent on task with mutation testing

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AI in the workforce: A shifting talent equation

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The anvil of alignment: The value of monoliths over microservices

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Build common (virtual) ground with unstructured remote calls

testdouble.com·34w

Understanding legacy application rewrite vs. refactor tradeoffs

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Pydantically perfect: seamlessly handle non-Pythonic naming conventions

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Field Report: Rails World 2025

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Pydantically perfect: A beginner’s guide to Pydantic for Python type safety

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C# and .NET tools and libraries for the modern developer

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Turning observability into a team strength without a big overhaul

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