30 years building systems where failure isn't an option. Now building with AI.
Banking. Insurance. Telecom. Government. Real money, real consequences, not demos. I've shipped production code since before Git existed—and I'm more excited about building software today than I've ever been.
I'm an AI-native developer now. Claude is my copilot. The three decades of enterprise experience? That's what keeps me from over-engineering and under-delivering.
🕐 Last seen: 2026-09-02 07:08:16 -03
| Project | What it does | Why it matters |
|---|---|---|
| devtrim | Safe disk hygiene for macOS developer machines: measure, classify, trim with danger-scored guardrails and Trash-first deletion | Reclaimed 250+ GB on my own machine before anyone else ran it |
| hay | Ranked grep for coding agents — rg's exact matches, reordered so the declaration comes first | Agents read page one. Now page one has the answer. |
| DNSChat | LLM chat over DNS queries | Sometimes the constraint is the feature |
| Open Profile Manager | Local-first Codex profile launcher for macOS | Separate accounts, explicit control, no token handling |
| MSX Expert XP-800 · Live demo | Interactive 3D replica of Brazil's 1985 Gradiente Expert, with a working MSX emulator on a period CRT | Procedural Three.js, an original Z80 game, and user-owned ROMs that never leave the browser |
| LLM Deep Dive | Free, open-source bilingual course on how large language models actually work | Goes beyond analogies with hands-on labs, teach-backs, quizzes, and cited empirical claims |
| STOA | A 12-week Stoicism course in Brazilian Portuguese — 36 self-contained lessons, 14 exercises, a reflective journal | No account, no backend, no cookie. Your journal never leaves your device, and the whole course works offline |
| AI Pedometer | iOS and watchOS step tracker with on-device AI coaching | HealthKit, workouts, widgets, and Apple Foundation Models without sending health context to a cloud AI service |
| cf-toolkit | Safe multi-account Cloudflare Wrangler | Two locks so you never deploy to the wrong account |
| ffts-grep | Fast full-text search indexer with SQLite FTS5 | Sub-10ms queries. Built for Claude Code. |
| iOS Health Sync | Sync HealthKit data iPhone �� Mac | Your health data. Your devices. No cloud. |
| Skills | Six skills for AI coding agents: explain, review, verify, orchestrate, score readiness, teach back. npx skills add mneves75/skills |
Skills that hold the agent to a standard. The agent isn't broken. Your repo is. |
| Mega-Sena Analyzer | Lottery statistics and bet generator | Data science for the masses. No predictions, just math. |
| Swift Fast Markdown | High-performance Swift markdown parser | Parsing 100MB/s+ on Apple Silicon |
| clawdbot | Personal AI across all messengers | WhatsApp, Telegram, Slack, Discord, Signal, iMessage |
Ship beats perfect.
Clarity over cleverness.
Privacy is baseline, not feature.
Mobile-first is not optional.
John Carmack is reviewing my code.
Languages: TypeScript, Swift, Rust Mobile: React Native, Expo, SwiftUI Backend: Bun, PostgreSQL, Supabase AI: Claude (obviously)
I teach AI and development in Portuguese at conhecendoia.com.br — because knowledge shouldn't require a language tax.
- 𝕏 @mneves75
- Writing about AI-native development and what 30 years of shipping taught me
Open source everything. Apache 2.0. Shared knowledge multiplies.