Projects
Open-source repositories on GitHub. Architecture studies and long-form notes live on the blog.
Open source
- Go Notes APIGo microservices with API Gateway, Postgres per service, async audit via Kafka, and a React frontend.Go · Kafka · PostgreSQL · React · Docker
- Kafka Serverless SimulatorVisual Kafka serverless simulator: partitions, consumer groups, offsets, and DLT in the browser.React · Kafka · AWS · TypeScript
- Simulador Motor APIBackend API for automotive simulation with maintainable REST contracts and modular architecture.Node · TypeScript · REST
- gRPC Microservice DemoService-to-service communication example using gRPC and Protocol Buffers.gRPC · Node · Protobuf
- Quby BRWeb application for the Brazilian market with modern stack and UX.TypeScript · React · Next.js
Studies on the blog
View blog- Context engineering: skills and MCPContext assembly as code — versioned skills, MCP for live systems, and governance.LLM · MCP · Skills
- LLM agents in productionOrchestration, tools as APIs, idempotency, async workers, and observability.Agents · LLM · Kafka
- Production RAGHybrid search, golden-set eval, abstention, and when to skip RAG.RAG · PostgreSQL · Search
- Quby: RAG, text and voice agentsMulti-tenant study with pgvector, orchestrator, and Vapi — try demo.quby.com.br.RAG · LLM · Kafka · PostgreSQL · K8s
- NestJS cron on KubernetesCluster CronJob instead of @Cron on every scaled API pod.NestJS · Kubernetes · TypeScript
- Clean Architecture and DDD in .NET microservicesEntities, aggregates, repository, and application services with ASP.NET Core.C# · .NET · DDD
GitHub — all repositories