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Field notes

What we're learning, while we build it.

Timing studies, pricing arithmetic, design decisions we argued about, and the occasional thing we got wrong. Written for operators, not for search engines.

Latest Jul 24 2026 · 6 min

We timed a pool visit 40 times. Here's where the seconds actually go.

Everyone in this category quotes a "under a minute" number. We wanted to know what the minute is made of — so we instrumented the flow and watched where a technician's attention leaks.

Read the study →
Where the time went
Typing readings31s
Finding the account12s
Dosage arithmetic9s
Actual pool workthe rest
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