Developer Notes

Building modern web experiences with Svelte

Hi, I'm Kees Fluitman. I write about SvelteKit, TypeScript, and building performant web applications. Explore my projects and notes from real-world development.

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May 2, 2026

Virtual Masonry from First Principles โ€” Inside KnowMore

How KnowMore renders galleries of a thousand photos by mounting only the dozen tiles the user can actually see. A walk through coordinate translation, greedy packing, and using $effect as a bridge between browser events and the reactive graph.

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