Journal

Notes written after class, not before.

These pieces come out of arguments in the atelier. They are not a vendor blog, and they are not a complete course.

Line charts on a laptop screen

12 March 2026 · Schema

Naming events that survive a reorg

Layout-derived names fail the month the tab bar splits. A verb-object grammar fails later, which is still a kind of progress.

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Abstract blue technical lights

2 February 2026 · Retention

When DAU hides a cohort collapse

A stable daily number can still be a treadmill of new installs covering a thinning week-one class.

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Desk with coffee, glasses and papers

18 November 2025 · Properties

Property dictionaries after a rebrand

Old SKUs linger in enums. New names arrive as free text. The dashboard pretends they are cousins.

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Code on a monitor in a dark room

7 September 2025 · Funnels

Reading funnels without vanity steps

If a step exists only to make the slope look gentler, it is not a step. It is decoration.

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Woman presenting beside a screen

21 June 2025 · United Kingdom

What UK product teams ask about retention windows

Sunday spikes, bank holidays, and why a seven-day window is not a moral fact.

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