I'm based in Porto and spend most of my time with React, TypeScript, and Next.js. I like taking a rough idea all the way to something people can actually use, especially when there's a slightly awkward workflow to simplify.
- polished product interfaces and frontend architecture
- developer tools and local-first software
- AI features that are actually useful
| Project | What it is |
|---|---|
| MD Share | Real-time collaboration for Markdown notes, with live editing, previews, share links, and Docker deployment. |
| React Kanban | An Obsidian plugin that turns Markdown kanban notes into a modern React board. |
| Local Comments | A VS Code extension for keeping code comments local, with search and stale-comment detection. |
| S3pia | A self-contained AI assistant with Telegram interaction, persistent memory, skills, and background execution. |
For production work, shipped products, and a few older experiments, have a look at marceldev.com.




