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Notes on testing, prototyping, and shipping products.

Contents5 posts
Building Fiuto2 parts
Method guides3 guides
How many users do you need for a usability test?Moderated vs unmoderated usability testing: which one do you need?What can AI actually do in user research?
Building Fiuto · 5 posts
Contents5 posts
Building Fiuto2 parts
Method guides3 guides
How many users do you need for a usability test?Moderated vs unmoderated usability testing: which one do you need?What can AI actually do in user research?
Series

Building Fiuto

2 parts · 4 arcs · 14 min read · 17 Aug 2026

Start with part 1
Arc 1 of 4Parts 1-2 · 14 min

Core flows in automated design

1Part 1 of 2 · 7 min read

Batch-updating simple components in an automated redesign

How I batch-redesign components using an automated workflow in Claude Code.

2Part 2 of 2 · 7 min read

Redesigning complex components

A repeatable review, state, translation, and fidelity loop for redesigning a complex, implemented multi-variate component.

Standalone3 guides · 27 Jul 2026

Method guides

Guide · 4 min read

How many users do you need for a usability test?

Nielsen's five-user rule explained: where it holds, and when your sample needs to be bigger.

Guide · 4 min read

Moderated vs unmoderated usability testing: which one do you need?

What each method actually gets you, and how to choose without guessing.

Guide · 4 min read

What can AI actually do in user research?

A plain-language line between where AI genuinely helps and where it still needs a human.

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