Rafael Moreira · Resume ↗
I'm not a dev who just writes code .
I make the whole environment work.
I'm not a dev who just codes. I'm a dev who makes code run on a server, on a network, securely, in production. Mid-level from day one at Babita, because the scope was never just code.
Local-first. Free-by-default.
LEDGB exists because I wanted an AI agent that ran on MY PC, using free AI, with no subscription, no provider lock-in. I built what the market was missing.
Self-taught, learn by doing.
Every portfolio (V1→V5) was an excuse to learn a new stack. Every volunteer project was a proving ground. No paid course, no bootcamp.
Communication is the differentiator.
That's why the YouTube channel. That's why this portfolio. Good code without good narrative disappears on GitHub. I'm investing heavily in this part.
Tools that get it done , rules I don't negotiate .
Frontend
- React 18
- Vite
- JSX puro
- Stencil.js
- CSS custom props
- Electron
Backend
- Node.js
- Express
- WebSockets
- REST
- JWT/HMAC
- Multer
Data
- PostgreSQL
- MongoDB (driver)
- Redis
- SQLite
- ChromaDB
- pg Pool
AI / LLM
- OpenAI SDK
- OpenRouter
- Ollama local
- Groq
- LangChain
- RAG
- Streaming SSE
Infra
- Linux servers
- Nginx
- SSH multi-host
- Cron
- PM2
- Backups
Tooling
- Git
- MCP
- Playwright
- Obsidian
- OBS
- Figma
- VS Code
- Bash/PowerShell
LEDGB Orchestrator .
LEDGB Orchestrator
Autonomous dev agent. Local-first. Runs on your PC. Uses free AI. Falls back to other free AI on rate limit. Remembers projects across sessions. Telegram-controlled.
- 5 free + paid + custom providers · auto-fallback on 429
- Electron + dark/light + adaptive level (beginner → senior)
- Obsidian-style memory + clickable navigable graph (275 notes)
- Multi-user Telegram bot with roles + AES password
- Token-by-token streaming + real cancel via AbortController
- Offline HMAC-SHA256 licensing · zero cloud check
What I maintain.
Visual and UX analysis tool I use to audit interfaces including this portfolio. Three interfaces over one engine: an MCP server for AI agents, a REST API and an Electron app.
- MCP + REST + Electron over a single analysis engine
- Responsive screenshots, contrast, spacing, SEO and a11y
- Intent-based tool search, designed for agents
Search and ask questions over your own documents, running locally. End-to-end RAG: embeddings on Ollama, vectors in ChromaDB, orchestration with LangChain and metadata in Postgres.
- Full RAG pipeline: ingest → embed → retrieve → answer
- Local Ollama + ChromaDB, no cloud data never leaves the PC
- LangChain orchestration + metadata in PostgreSQL
I keep the whole ecosystem running with a small team: building new features, servers, networks, security, support. Not a job title a one-man stack.
- Backend + frontend for new features, straight to production
- Linux servers, Nginx, deploy and uptime on me
- Network, firewall, VPN and security the whole stack
Institutional site rebuilt from scratch, then a V2 when V1 aged. Volunteer work delivered, maintained, no expiry date.
- Institutional V1 written from scratch (Oct/2023)
- V2 rebuilt when V1 aged (Jul/2024)
- Volunteer, solo, live and maintained with no deadline
The site you're reading. Stencil + Web Components in light DOM, bilingual PT/EN, prerendered and tuned to be found by search engines and AI. Successor to V4, faithful to the same visual identity.
- Stencil + Web Components in light DOM, no CSS framework
- Bilingual PT/EN with i18n, hreflang and prerendered /en/
- JSON-LD + OG + sitemap to be found by search and AI
Investing in communication as a differentiator. Focus: a Linux-for-servers track, from zero to production.
- Essential Linux for Servers from zero to production
- Real process happening in real time, not static slides
- + 2 advanced courses on the roadmap (infra and automation)
From 2020 to here .
Communication as a differentiator .
Essential Linux
for Servers track.
From fundamentals to real-world scenarios. Hands-on, process happening in real time not a static video. The initial track covers 11 modules:
- 01 Virtual lab setup
- 02 Terminal and productivity
- 03 File structure and storage
- 04 Processes and logs
- 05 Users, groups and permissions
- 06 Package management
- 07 SSH and remote access
- 08 Security
- 09 Backups
- 10 Backend environment prep
- 11 Linux scripts and automation
+ two advanced courses on the roadmap: infrastructure, automation and applied development.
WATCH ON YOUTUBE →Dev + Sysadmin in one role.
At Babita, the same person maintains the backend, the frontend, the Linux servers, the network and security. The whole stack out of necessity and taste.
Solo dev who ships.
LEDGB Orchestrator has no team. It's one dev, one Electron app, and the decision not to wait for permission to build what was missing.