Log

What I've been reading and find interesting.

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Production Query Plans Without Production Data

PostgreSQL 18 lets you export optimizer statistics from production and use them with test databases to get realistic query plans without the same data.

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TIL: Docker log rotation

Good to know that Docker doesn’t rotate logs by default

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How I Reduced AI Token Costs by 91% with Semantic Tool Selection and Redis

Using semantic search to select only relevant tools for the LLM reduces both token costs and improves tool selection quality.

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Unconventional PostgreSQL Optimizations

It truly is incredible how much you can optimize Postgres.

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Fizz Buzz with Cosines

Tuck this one away for the next time you’re asked FizzBuzz in an interview.

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Importing Node modules from BitTorrent

Your scientists were so preoccupied with whether they could, they didn’t stop to think if they should.

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Why /dev/null is an ACID Compliant Database

Seems to check out.

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Pure CSS Tabs With Details, Grid, and Subgrid

Now we can build tabbed interfaces using only HTML and CSS by combining the <details> element with CSS Grid and Subgrid with full accessibility.

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Why do LLMs freak out over the seahorse emoji?

A fascinating technical deep-dive into why LLMs consistently believe a seahorse emoji exists (it doesn’t) and how they construct internal representations that lead to this persistent hallucination.

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Immich - Cursed knowledge

A delightful collection of technical quirks and unexpected behaviors typically only gained through experience.

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Creating a scroll-spy with 2 lines of CSS

The web platform keeps gaining more and more native features for common patterns that were previously manually implemented. This is a welcome addition!

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llama.ttf

Today I learned that fonts can include arbitrary logic in web assembly. In this case, llama.ttf is a font file which is also a large language model and an inference engine for that model.

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Breaking Down the 35mm Website

This reminds me of the current homepage for Anime.js. Super cool to see an alternative implementation of similar effects in Three.js.

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Announcing Rolldown-Vite

This is super exciting! Vite will soon replace rollup with VoidZero’s rolldown, and esbuild becomes an optional dependency.