The Notebook · 1 essay / week

Math-first essays from someone who actually ships.

Long-form on mathematics, finance, and AI from a working engineer. Subscribe and you'll also get two free production checklists the day they ship.

The Notebook · weekly

One essay every Tuesday.

Long-form on mathematics, finance, and AI from a working engineer. Field notes from production, retros that don't gloss over the friction, and the books I've actually read. No spam, one click to leave.

Free. Weekly. One click to unsubscribe. Hosted on Buttondown.

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Two production checklists, on the house.

Distilled from real client work. Specific enough to use today; opinionated enough that you'll disagree with at least three items. That's the point.

Algo Trading

47-Point Production Checklist

Everything to verify before you let a strategy touch live capital — distilled from a year of running NautilusTrader against live FX and crypto venues. Latency, kill-switches, replay testing, position sizing, broker quirks.

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AI Infrastructure

LLM Cost Engineering Worksheet

A live Google Sheet with the formulas behind the multi-LLM agent runtime that cut its inference bill 35% in 90 days. Token accounting, fallover economics, caching ROI, eval-cost amortisation.

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