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01Writing
Long posts, with a working demo attached.
I take apart how good products are built, then rebuild the core trick small enough to play with. Substack

Anthropic runs 30,000 agents at once. Here's the architecture you'd need to do it.
A first-principles design for a fleet of AI agents: the real numbers, the nine parts, and the one resource you can't buy more of.
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How to build agent memory that holds up in production
The three layers of production agent memory, the code shape, and how to measure it.

Built Different #02
The math behind 10-minute delivery
Dark stores, rider speed, and the last 100 metres. A city simulator you can drag.
Play with the demo
Built Different #01
Why Linear feels instant
The same issue tracker, built two ways. I rebuilt the idea behind Linear's speed in 250 lines.
Play with the demo