Built like architecture.Loaded like art.
KAELUM STUDIO designs and engineers bespoke storefronts, editorial sites and full-stack web apps for brands that refuse to look generic.
We build the few things, perfectly.
We are not a content shop. We are an engineering and design house — small by design, ruthless about quality, and built for clients who treat their website as the most important room in their business.
Every site we ship is hand-cut. No themes. No page builders. No drag-and-drop scar tissue. Just typography, motion, and architecture, tuned until the experience feels inevitable.
Seven projects. No fillers.
- 01
Interior Design · Bespoke Full-Stack
Mario Soto — Projects Portfolio
A portfolio that reads like a photo book.
2026View case → - 02
Beauty & Wellness · Bespoke Full-Stack
WanaWay — Mobile Beauty Specialist
A seamless booking experience driven by AI for accurate scheduling.
2026View case → - 03
Commercial Vehicles Engineering · Bespoke Full-Stack
Sánchez Reneo — Commercial Vehicles Engineering
Authority without the corporate clichés.
2025View case → - 04
Automotive · Web Design & SEO
Talleres Miguel — Auto specialists
A workshop's reputation, made digital.
2025View case → - 05
Piano Fine-Tuning Services · Bespoke Full-Stack
Ivory Hammer — Piano Fine-Tuning Services
Real-time bidding with the texture of a gallery.
2026View case → - 06
Trades & home services · SEO
GM Electrical — Trade services
A local electrician, ranking like a national.
2025View case → - 07
Engineering · Bespoke Full-Stack
Jesús García — Personal site
The studio's own founder, in code.
2026View case →
Five disciplines. One studio.
Full-stack web apps
Bespoke products on Next.js 16 + Postgres. Real-time, type-safe, edge-rendered.
- Next.js 16 · React 19
- tRPC · Drizzle · Postgres
- Vercel edge runtime
Shopify storefronts
Editorial Hydrogen builds that feel custom and convert like it.
- Hydrogen + Remix
- Headless on Vercel
- Custom checkout extensions
WordPress, headless
Beautiful WordPress for editorial teams — fronted by a Next.js shell.
- WPGraphQL + ACF
- Sub-second TTFB
- Block editor that respects design
Conversion web design
Brand-led design systems that ship as production code, not just Figma.
- Design tokens
- Motion language
- Component library handoff
Technical SEO & GEO
Schema-rich, programmatic geo, Core Web Vitals tuned for the green.
- Programmatic geo
- JSON-LD architecture
- CWV teardown
AI Integrations
Leveraging AI to enhance user experiences and streamline workflows.
- Natural language processing
- Automation solutions with AI
- Custom AI model integration
Four movements, from blank page to launch.
- I1 week
Discovery
We unpick the business model, the brand, the audience. We define the one thing this site must do. Output: a brief sharp enough to be a contract.
- II2–3 weeks
Design
Type, grid, motion, photography. Brand and product collapse into a single visual system. No mood-boards-as-deliverables.
- III3–6 weeks
Build
Engineering happens in the open. Next.js or Hydrogen, tested in production conditions, with weekly preview links and a final CWV report.
- IVOngoing
Launch & care
We ship, instrument, and stay on call. A 30-day stabilisation window included. Ongoing care packages available.
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Projects shipped in 2026
0+
Avg Lighthouse perf
0.0s
Median LCP
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Towns covered
Engineered for trust. Built to perform.
Security, performance and accessibility aren't bolted on at the end — they're how we design from line one. So your customers get speed, safety and seamless access, every visit.
01 — Security
Protected by design
Layered defences and end-to-end encryption keep your site and customer data safe.
- DDoS protection so attacks never take your store offline
- Customer data encrypted in transit and at rest
- Deployed on SOC 2 Type 2-certified infrastructure
02 — Performance
Frozen precision
Pages render in under 2.5s. Interactions feel native. Layouts never jump.
- Content visible before users notice a delay
- Buttons and inputs respond instantly
- Stable layouts — no surprise shifts mid-read
03 — Accessibility
Inclusive by default
Built to WCAG standards so every visitor — any device, any ability — gets the same experience.
- Fully navigable by screen readers
- Works with touch, mouse or keyboard
- High-contrast text and clear focus states
04 — Reliability
Always on
Enterprise-grade uptime, automatic failover and real-time monitoring around the clock.
- 99.9%+ uptime backed by redundant systems
- Silent failover if anything hiccups
- Issues flagged and fixed before customers notice
We handle the technical architecture so you can focus on brand, design and growth.
“They didn't redesign our site. They rebuilt how customers experience our brand. We've never converted like this.”
Mario Soto
Interior Designer · Mario Soto Studio
Working notes from the studio.
Engineering
Why Shopify Hydrogen still wins in 2026
Three years in, Hydrogen + Oxygen is the most boring, predictable, fast storefront stack you can build. That's a feature.
8 min · 20 May 2026
SEO
Programmatic geo SEO for service businesses
How to template-build hundreds of locally relevant pages without sounding like a thin-content farm.
12 min · 11 Apr 2026
Performance
Core Web Vitals after React 19
What changed with React 19, what got faster for free, and the patterns we adopted to push INP below 100ms in production.
10 min · 02 Mar 2026
Build the website your business actually deserves.
Tell us about the work. We reply within 24 hours, in English or Spanish. Discovery calls are free and never sales-pitched.