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Johannes Konings

Notes and posts on AWS and TanStack.

Recent posts

Feature-stack databases and Drizzle migrations on shared Aurora
Oct 12, 2026•6 min read

Feature-stack databases and Drizzle migrations on shared Aurora

Each workload stage gets its own PostgreSQL database on the account-level Aurora cluster. A custom resource creates it through the Data API, and Drizzle applies the same migrations on deploy and from the laptop.

drizzledrizzle kitaurora+2 more
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Type-safe Drizzle selects from Zod page schemas
Oct 11, 2026•3 min read

Type-safe Drizzle selects from Zod page schemas

Derive a Drizzle select from a Zod page schema so Aurora returns only the columns a screen needs, and TypeScript fails when the table, the schema, and the view drift apart.

drizzleaurora data api
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CDK Mixin for setting recommended TLS version for API Gateway and endpoint access mode
Apr 23, 2026•3 min read

CDK Mixin for setting recommended TLS version for API Gateway and endpoint access mode

Use a type-safe CDK mixin to enforce modern API Gateway TLS policy and endpoint access mode across REST APIs, instead of brittle one-off L1 overrides.

awscdkmixin
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