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Marco's Posts

Welcome to my blog! Here you'll find articles about software development, programming and other random topics.

Fixing Missing Returning Clauses in Kysely Queries with Biome and Grit

March 5, 2026

In my previous post, I showed how to use Biome and Grit to catch common mistakes in Kysely queries, such as missing select clauses or where clauses. Another common issue is forgetting to add a returning clause to insert, update, or delete queries, which can lead to unexpected results when the query

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Linting Kysely Queries with Biome and Grit

February 16, 2026

I’ve been using Kysely heavily recently. It’s great for type-safety, but it has a specific pitfall: it is very easy to write a valid TypeScript expression that creates a query builder but never actually executes it.

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