// location Porto, PT — UTC+0
// index [00] / introducing
// build v4.1.0 · 2026
// status 2 slots · Q2 2026
~/rzlabs zsh ↑ ↓ navigate

I build
durable
digital products.

Fábio Fernandes — freelance developer working on the interface between custom web products and the systems around them. Next.js, Shopify, Sanity, and the AI automation that keeps them lean.

Products that ship, systems that don't rot.

S/01 — web development

Custom web
products.

Next.js apps with a component system you can actually maintain. React, typed, tested, measured. Built for Core Web Vitals, not demos.

Next.js 15 React 19 TypeScript Tailwind
S/02 — e-commerce

Stores that
convert.

Shopify (Hydrogen / Liquid) and headless WordPress builds tuned around a single thing: getting to the checkout without friction.

Shopify Hydrogen WooCommerce Stripe
S/03 — CMS

Content editors
actually like.

Sanity schemas modelled around how your team thinks. Presentation, structured content, custom studio. No brittle page-builders.

Sanity GROQ Studio v3 Portable Text
S/04 — automation & ai

AI pipelines
that earn their keep.

Internal tools, agents, content pipelines. I ship automation that moves real work off your desk — with logs, cost caps, and a kill-switch.

OpenAI Anthropic n8n Cloudflare
// 2 slots open for Q2 2026 Book a slot Book a slot

A developer, not an agency.

Fábio Fernandes. Porto-based. I build custom digital products for founders and small teams that want the work done by the person doing the work.

My bias is toward performance, systems, and execution: fewer dependencies, clearer components, pipelines that don't break at 2am. I care about how a product runs, not just how it renders.

Outside the terminal there's a barbell, a home-built PC, and a mild obsession with optimizing anything that measures.

// 9+ years shipping · lead dev background · now independent since 2023
// currently: Next.js 15, Sanity v3, Shopify Hydrogen, Claude-assisted workflows

Straight line, from brief to live.

/01~ 1 week
Idea
Problem, audience, constraints. I push back early so we don't build the wrong thing.
/021–2 weeks
Design
Low-fidelity flow, then focused hi-fi. Component-system thinking from day one.
/032–6 weeks
Development
Typed, componentised, previewed per-branch. You see the build as it's built.
/04ongoing
Optimization
Ship, measure, tighten. Lighthouse, logs, and the small wins that compound.

Two ventures, both mine.

// want results like these? Start a project Start a project

Boring where it matters, sharp where it counts.

v15.2
Next.js
App router · RSC · edge
v19.0
React
Server components · TS
v3
Sanity
Schemas · GROQ · studio
2025-07
Shopify
Hydrogen · Liquid · API
v6.8
WordPress
Headless · ACF · REST

Got a brief?

Send a three-line email.
I'll reply with honest feedback
before a proposal.
hello@rzlabs.me
// response · < 12h on weekdays
booking now · Q2 2026
/ tweaks
theme
accent
personality
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