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Codex Planas · Folio I
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Folio i

Machines

Things I've built, most of them because my own research needed them first. The current ones are drawn as plates; hover to watch each sketch become the machine.

Fig. 1Options · 2025
A sketched plotting instrument turns into brass and silver and traces a long call payoff line

optionerd

A free options strategy calculator and visualizer, built by an options trader for traders.

optionerd.com ↗

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Fig. 2ETFs · 2025
A sketched glass vessel fills with amber liquid while a tap at its base drains it

YieldMaxCalc

Yield calculator and analytics for YieldMax ETFs: distributions, NAV decay and total return.

yieldmaxcalc.com ↗

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Fig. 3Markets · 2025
A sketched magnifying lens on an articulated arm turns to polished metal over a row of candlesticks

WhyTheMove

Explains why a stock is moving today by pulling news, filings and market signals into one clear narrative.

whythemove.com ↗

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Fig. 4Construction · 2026
An architect's sketch of a Mediterranean house fills in with plaster, shutters and scaffolding

Nalu

Website and lead pipeline for a renovation and project-management company in Barcelona and the Garraf.

nalu.house ↗

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The ledger · earlier machines