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A field report from six teams who tried to adopt one in 2025. The pattern is the same. The fix usually isn't the mesh.

Mar 14systems-design 11 min 1,240 84

Incremental generators changed what library authors can ship without runtime cost. Here's the mental model that finally clicked.

Mar 12csharp 8 min 980 41

A walkthrough of writing a custom aggregate in C, packaging it, and not breaking your machine.

Mar 11postgres 14 min 720 33

The API is shipping. The mental model is harder than the docs imply. A diagram-heavy guide.

Mar 10react 9 min 1,410 62

Why every RAG demo looks great and most production deployments don't. Embedding tricks alone won't save you.

Mar 9llm 12 min 2,240 118

A short field guide to building utility types that other humans can read six months later.

Mar 7typescript 10 min 1,050 47

A debugging story. Includes screenshots of vendor support tickets and the patch that fixed it.

Mar 5webgl 7 min 640 28

Custom rotors, accessibility focus, and how to test with VoiceOver without going feral.

Mar 4swift 13 min 520 22

A survey of how five OSS projects use generics in production. Spoiler: it's mostly the same six patterns.

Mar 2go 8 min 880 38

A token system that doesn't collapse the first time a designer asks for "a slightly warmer blue".

Mar 1design-systems 11 min 760 31

Pin, Future, Waker — drawn out, in order, with the parts you can ignore clearly marked.

Feb 26rust 16 min 1,820 92

The decision tree I wish I had three years ago.

Feb 24systems-design 6 min 530 19