Case studies with real implementations — architecture decisions, technical challenges, and solutions built in production.
A curated index of production work — automation, observability and operational systems documented end-to-end.
Full-stack operational infrastructure for automated communication, intelligent queue processing, and real-time operational monitoring at institutional scale.
Dark editorial lawyer landing page with a typewriter hero, full-viewport photo mask, CSS marquee ticker, 6 educational YouTube videos, and a WhatsApp-first contact flow.
Interactive cybersecurity awareness platform with 11 learning modules, a 100-question gamified quiz engine, 8-badge achievement system, and printable PDF certificate — built as a zero-dependency single-file web app for public education.
A production-deployed social platform and encyclopedia for motorsport fans — built security-first, with Row Level Security on 100% of tables, SECURITY DEFINER RPCs for every sensitive operation, and one aggregated query per page.
A single-file conversion landing page for a Maringá air-conditioning installer, built around one sharp differentiator — electrical work and installation in a single visit — with a WhatsApp-first CTA flow and a fixed mobile action bar.
A single-file landing page for a Sarandi HVAC service, built on a dark teal-and-amber system around an animated thermostat that cools a room from 34° to 22° — turning the core promise into a moving visual.
A single-file landing page for a Maringá HVAC store, built around a "which BTU do you need" capacity guide that solves the buyer's first question before the sale — on a clean navy-and-turquoise system.
A single-file landing page for a Sarandi HVAC installer, built around a receipt-style "what's included" spec card and a three-step process that sell a closed quote and a clean install before the visit.
A single-file landing page for a Maringá HVAC company whose real edge is rope-access installation at height, built on an industrial concrete-and-orange system around a vertical "reach scale" from ground floor to tower facade.
A single-file landing page for a solo HVAC technician in Paiçandu, built around a live open/closed status pill (computed in the browser from the clock) and a weekend-availability band that sells "the AC broke today, fixed today."
A single-file landing page for an electrical-and-air-conditioning contractor in Marialva, built around a four-stage renovation track that shows exactly where the same team enters a build — from planning the outlets to handing the unit over cooling.
A single-file landing page for an HVAC service in Nova Esperança, built around a four-frame service record that sells the one thing customers never get to see — photos of every phase of the job, sent to their WhatsApp as it happens.
A single-file landing page for an HVAC service in Marialva, built around a symptom-led glossary that tells visitors which of four services their unit actually needs — so nobody pays for work they did not need, or skips work they did.
A single-file landing page for an automotive air-conditioning shop in Mandaguaçu, built around a dashboard-style panel that cools from 46°C to 5°C on scroll — the exact promise the driver came looking for.
A single-file landing page for an HVAC service in Astorga whose real edge is the calendar: open every day, 8am to 9pm. A live day-ruler reads the visitor's clock and shows exactly where "right now" falls inside those hours.
A single-file landing page for an HVAC service in Mandaguari whose promise is punctuality. The hero is a perforated appointment slip — a booked time, a confirmed stamp — so "we show up when we said" reads as an object rather than a claim.
A single-file landing page for a refrigeration shop in Cianorte that services cars, trucks, refrigerated boxes, and farm machinery. A four-tab picker lets each visitor select their machine and rewrites the copy and the WhatsApp message to match.
A single-file landing page for an HVAC service in Apucarana that answers the phone at 3am. A 24-segment SVG dial lights today's open hours and points a hand at the visitor's current time — the claim, drawn as an instrument.
A single-file landing page for an appliance-repair service in Rolândia. Two dropdowns build the customer's WhatsApp message in a live chat bubble, so the hardest step — writing the first message — is already done before they tap send.