Marcio Cunha

Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

All categoriesArquiteturaAutomaçãoBackendCarreiraDevOpsEletrônicaEngenhariaFrontendHardwareIANegóciosProdutividadeRedes
IAArquitetura•4 min

Mitigating Language Model Hallucinations with Knowledge Graphs

Learn how to combine generative artificial intelligence with structured knowledge graphs to eliminate invented answers and guarantee factual accuracy in production.

DevOpsArquitetura•5 min

Standardizing Local Development Environments with Tool Containers and Devcontainers

Eliminate the classic problem where code works on a colleague's machine but breaks on yours by standardizing environments with Devcontainers.

BackendArquitetura•4 min

Complex Query Optimization in PostgreSQL Databases with Partial and Covering Indexes

Learn how to accelerate heavy queries in PostgreSQL using partial indexes and covering indexes. Discover how to save disk space and speed up critical reads on large datasets.

ArquiteturaBackend•4 min

Decoupling Business Logic with Event Driven Architecture in Legacy Systems

Explore practical strategies to decouple complex legacy systems using messaging and domain events without disrupting ongoing operations.

DevOpsArquitetura•4 min

Incremental Backup Strategies in ZFS Storages for KVM Virtualization

Learn how to design efficient incremental backup routines using ZFS filesystems and KVM hypervisors, ensuring rapid recovery and optimized storage consumption.

BackendArquitetura•4 min

Building High Performance APIs in Rust Using Axum and Connection Pools with SQLx

Learn how to structure fast and secure APIs by combining the Axum web framework with asynchronous database connection management using SQLx in Rust.

DevOpsArquitetura•4 min

Container Orchestration with Podman in Rolling Release Linux Systems

Learn how to replace traditional tools with Podman in rolling release Linux environments, ensuring daemonless security and operational efficiency.

DevOpsArquitetura•5 min

Secrets Management and Automated Credential Rotation in Kubernetes

Learn how to integrate HashiCorp Vault into Kubernetes clusters using Sidecar Injectors to ensure dynamic injection and automated credential rotation without restarting applications.

BackendArquitetura•3 min

Domain Modeling with Event Sourcing and Read Projections

Learn how to build resilient systems using Event Sourcing to record complete mutation histories and read projections optimized for fast queries.

FrontendArquitetura•3 min

Micro-Frontends Architecture with Module Federation and Execution Context Isolation

Learn how to build decentralized web applications using Module Federation to load parts of systems at runtime with rigorous execution context isolation.