Just a normal guy~ who likes building
thoughtful interfaces, privacy-first apps, developer tools, tiny experiments for the web.
Available for new projects
Featured
Factory on Rails
A software factory hosted entirely on Railway: describe a change, and Claude Code or Codex does the work in a disposable sandbox, opens a pull request and keeps fixing it until CI goes green.
Other works
RealPDF
A PDF editor that runs entirely in your browser: edit text, fill forms, convert Office files and sign. Your documents never leave your device.
FreeMix
A cross-platform, GPU-first live production system written in Rust, aiming for vMix-level switching, mixing and streaming on any OS.
fuwa
A chat app for communities: servers, channels, roles and channels shared across servers. Use the hosted instance or run your own.
More on GitHub
Everything else I've open-sourced, experiments included.
Toolbox
- TypeScript
- Go
- Rust
- React
- Effect
- Next.js
- Cloudflare Workers
- Railway
- PostgreSQL
- Node.js
- WebAssembly
- AWS
- MCP
- Redis
- Docker
- Astro
Background
- NowBuilding Factory on Rails, RealPDF, FreeMix and fuwa.
- 2026 SepStarted Factory on Rails, a software factory where coding agents open the pull requests.
- 2026 SepLaunched RealPDF: edit, sign and convert PDFs without uploading them anywhere.
- 2026 JulStarted FreeMix, a cross-platform live production system in Rust.
- 2019–2026Full-stack developer at Prisma Gestión Empresarial, the team behind Feria 2 Ruedas: ran the web side of its events and built its Go and Node.js APIs.
- 2016Opened a GitHub account and started building in public.
Say hi
The quickest way to reach me is email — I read everything, and I usually reply within a day or two.