Journal

Field notes for people who own the number.

Short arguments, not recaps of vendor documentation. Written by faculty and occasional alumni. Nothing here is a substitute for a live critique of your board.

Printed charts and a calculator on a desk

12 Mar 2026 · Arunwadee Phan

Crash-free is not a north star

Thai consumer apps can look stable on paper while dual-SIM devices quietly drop the first session. What the rate hides, and what to put beside it.

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Person working on a laptop at a wooden desk

28 Jan 2026 · Visiting faculty

Cold-start budgets when the network is the product

How we ask teams to set time-to-interactive targets without pretending every user is on fibre in Sukhumvit.

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Notebook and planning sheets on a desk

09 Nov 2025 · Studio desk

How event taxonomy debt shows up in weekly KPI reviews

Duplicate screen views, orphan properties, and the Monday slide that quietly double-counts a funnel step.

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Office with large screens at night

21 Sep 2025 · Store module notes

Treat store conversion as a closed product loop

Ranking and listing copy are not a marketing sidecar. They are claims the first open must keep.

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Code and monitoring on a computer screen

04 Jun 2025 · Platform hour

ANR rate versus hang time on the exec slide

One number tells you the OS noticed. The other tells you a human did. Putting only one on the slide is a choice, not a default.

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