Clarity is a systems problem.
Research, interface decisions and production code—documented.
WRITING · NOTES FROM THE WORK
Things I’m learning,
building and
questioning.
Field notes on UX, experimentation, front-end craft and the messy thinking behind better digital products.
Written by Josue Somarribas · Costa Rica → Spain45 articles · New notes, published irregularly
Start here
A selection that shows how I think and work.
CRO & Experiments
The Cost of FOUC: How Flicker Kills A/B Test Validity
When users see the control for 300ms before your variant snaps in, your data is contaminated. Why flicker is a validity bug and how to fix it properly.
Framer & SEO
JSON-LD for Case Studies: Schema for UX Portfolios
Schema.org has no CaseStudy type, so what should a UX portfolio use? A working JSON-LD recipe for case studies, with the honest limits of what schema buys.
Interface design
The Squircle in Mobile CRO: Superellipses and Friction
Squircles are everywhere in mobile UI, but do smoother corners reduce friction in buttons? What the geometry can and cannot promise for conversion.
Latest notes
Field notes, practical guides and lessons from the work.
CRO & Experiments
Guardrail Metrics That Actually Protect the Product
How to define guardrails, tolerances, and decision rules before an experiment turns a local conversion win into broader product damage.
Framer & SEO
JSON-LD Examples: 12 Practical Use Cases for Websites
A practical guide to 12 JSON-LD use cases, with working Schema.org examples, selection advice, validation steps, and the mistakes that make markup misleading.
CRO & Experiments
Statistically Significant Does Not Mean You Should Ship It
A practical framework for deciding whether an A/B test winner is large enough, reliable enough, and safe enough to implement.
Framer & SEO
Why I Left Framer for an AI-Assisted Static Site on Vercel
Why I moved my portfolio from Framer to a file-backed static site on Vercel, what it really costs, what I gained, and what I gave up.
Framer & SEO
Migrating from Framer to an AI-Assisted Static Site
A practical migration guide for moving a Framer portfolio and CMS blog into a versioned, file-backed static site deployed through Git and Vercel.
AI search
GEO vs SEO: What Actually Changes When People Search With AI?
A practical guide to SEO and AI search: content structure, citations without clicks, prompt tracking, analytics, and what visibility can actually be measured.
Framer & SEO
How I Generate Natural Blog Audio Locally for Free
Build natural blog narration locally with Kokoro, speech-ready scripts, pronunciation QA, automated MP3 export, and no paid voice API.
