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This Design Pattern Scares Me To Death

Scattered business rules and duplicated conditionals slowly rot a codebase by drifting out of sync and creating subtle bugs. The video shows how refactoring with the Specification Pattern makes rules composable, testable, and even configurable as data instead of hardcoded logic.

https://www.youtube.com/watch?v=KqfMiuL3cx4
DynamoDB crash course: part 1 – philosophy

This is part one of a series covering core DynamoDB concepts and patterns, all the way up to single-table design; the goal is to get you to understand idiomatic usage and trade-offs in under an hour. Today, we're looking at what DynamoDB is and why it is that way.

https://death.andgravity.com/dynamodb