Products / professional work / experiments
A closer look
at the work.
Each project has its own context. Explore the interface, the decisions behind it and what I contributed.
Dates indicate when each project began, not its latest update.
Order by start date
Ntu.My personal publication for essays, articles and studies in Portuguese, with an editorial reading experience, contextual references and tools for returning to a text.Available · WebSonarielA Windows workspace for local audio production: generation, native effects and version comparison, connected to an AI agent through MCP.Available · WindowsJanjaLivePrivate screen sharing for recurring groups of friends. Persistent rooms, explicit membership and web and Windows clients.Available · Web & WindowsVOID MindA standalone desktop environment I built for conversation, writing and study, with persistent history, workspace instructions, selected knowledge sources and a choice of ChatGPT or local intelligence.Alpha · DesktopVOIDMy local-first desktop workspace for typing practice, audio-reactive visuals, small games and local conversation, with a shared interface built around black surfaces and glacial light.Alpha · DesktopMind StackAI-powered cognitive organizer that transforms chaotic thoughts into structured insights using a fullstack architecture with authentication, quotas, persistence, and role-based access.Case studyItl Game HubA web-based game platform that combines a Next.js application layer with a deterministic gameplay engine, procedural systems, and experimental Canvas/Phaser renderers.Case studyFintrackA mobile-first personal finance platform that combines fast transaction tracking with AI-powered spending insights and a scalable full-stack architecture.Case studySignature BuilderA Next.js + TypeScript application that generates institutionally styled HTML email signatures with real-time preview, profile persistence, and import/export support.Case studyZona StreetModern e-commerce platform built with Next.js, featuring a custom admin panel, product catalog, and a scalable architecture designed for low-cost cloud deployment.Case studyHollow UIReusable UI framework with accessible primitives, CLI-assisted setup, and consistent design tokens. Open-source design system inspired by real-world enterprise frontend experience.Case studyDesign System & Component FrameworkDesign system and component framework built to standardize UI development, improve developer experience, and accelerate product delivery through reusable patterns.Professional workSCONSModern, responsive landing page showcasing the SCONS unified navigation system, built with Next.js and smooth UI animations.Case studyEnterprise Frontend Architecture Case StudyA confidential case study on internal frontend architecture, authenticated APIs and interface reliability. Production code and screens are not shared.Professional workDev RoastA playful AI code review app built during Rocketseat's NLW Operator event. Users submit code snippets and receive brutally honest feedback, scores, and improvement suggestions powered by AI.Case studyFile DriveA full-stack file storage solution with organized management, role-based access control, and an intuitive user interface.Case studyExpert NotesA web application that converts audio notes into text in real time using speech recognition in the browser.Case study