Architecture, product, and storytelling from first commit to first revenue.
I build products in public: SaaS templates, finance tools, focus apps, React UI systems, AI workflows, and production architecture notes.
Follow if you want battle-tested patterns for shipping faster without turning your codebase into debt.
| Project | What it does | Link |
|---|---|---|
| Lemon.dev | My product studio for architecture reviews, AI-native systems, product strategy, and launch storytelling. | lemon.dev.br |
| Lemon.dev Blog | Deep dives on architecture, AI, system design, Claude Code, frontend craft, and product strategy. | lemon.dev.br/pt/blog |
| IgnitionStack | Production-ready SaaS boilerplate with Next.js, Supabase, Stripe, auth, i18n, analytics, admin, and launch pages. | ignitionstack.pro |
| VibingCash | AI finance OS for Brazilian founders: import statements, clean duplicates, categorize spend, and ask questions in Portuguese. | vibingcash.com |
| Neutrix | Focus and productivity app with tasks, Pomodoro, distraction blocking, and an AI assistant for breaking work down. | neutrix.life |
| Building more | Active lab for new AI-native SaaS experiments, templates, and developer productivity tools. | GitHub repos |
| Project | Why it matters | Stack | Links |
|---|---|---|---|
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iOS 26 Liquid Glass component library with 100+ accessible TypeScript components. |   |
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Robust C# API using DDD patterns for game-domain architecture practice. |   |
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React boilerplate focused on test coverage and E2E-ready project structure. |   |
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React + TypeScript boilerplate with GenAI hooks, state, data fetching, and tests. |  |
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Starter kit for AI experiments, prototypes, and product workflows. |  |
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Java learning path and backend practice repository. |   |
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Content project about JavaScript history and language evolution. |  |
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| Signal | Why it matters |
|---|---|
| 50+ launches shaped | I have seen enough product cycles to know which shortcuts compound and which ones break teams later. |
| 100+ developers mentored | I write for builders who want leverage, not theory. |
| 30K+ people reached | Content, templates, and products built for real usage, not portfolio decoration. |
| Brazil to global teams | Experience across fintech, health, edtech, marketplaces, and AI-native workflows. |
Need a SaaS shipped, a codebase reviewed, or an AI feature moved from demo to production?
Start here: lemon.dev.br