Marcio Cunha

Technical Articles

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

All categoriesArquiteturaAutomaçãoBackendCarreiraDevOpsEletrônicaEngenhariaFrontendHardwareIANegóciosProdutividadeRedes
ProdutividadeDevOps•5 min

Terminal Workflows with Neovim, Tmux and Zsh for High Productivity

Learn how to build a lightning-fast development environment combining Neovim, Tmux, Zsh, and custom automation scripts to eliminate daily friction.

RedesDevOps•4 min

Network Traffic Monitoring with eBPF and TLS ECH: Architecture and Practice

Learn how to combine eBPF for kernel-level packet tracing and TLS ECH for metadata encryption, overcoming modern enterprise traffic monitoring challenges.

HardwareDevOps•4 min

Building High-Capacity Storage Servers with Expanded SAS Controllers and ZFS in a Homelab

Learn how to design and assemble a high-density storage server in your home lab using expanded SAS host bus adapters and the ZFS file system for maximum data integrity and redundancy.

DevOpsProdutividade•5 min

Feedback Loop Optimization in Distributed Development Environments with Rust Terminal Tools

Learn how to accelerate feedback loops in distributed teams using lightning-fast, Rust-powered terminal utilities for code monitoring and automation.

DevOpsRedes•4 min

Immutable Configuration Management and Zero-Touch Provisioning with Ansible and Cloud-Init on Bare Metal Servers

Master the complete lifecycle automation of dedicated physical servers by combining Cloud-Init for initial bootstrapping and Ansible to enforce immutable infrastructure consistency.

HardwareDevOps•5 min

Firmware Testing Automation with QEMU and Continuous Integration

Learn how to accelerate embedded systems development by simulating microcontrollers with QEMU and validating code in continuous integration pipelines without relying on physical hardware.

DevOpsArquitetura•5 min

Systems Performance Monitoring with OpenTelemetry Telemetry

Learn how to unify metrics, logs, and traces into a single industry-standard tool to diagnose slowdowns and failures in complex systems with precision.

DevOpsArquitetura•4 min

Governance and Compliance Patterns in Infrastructure as Code: Cloud Control Strategies

Learn how to apply automated security controls, traceability, and compliance policies in cloud environments managed through code, preventing operational failures and regulatory risks.

DevOpsNegócios•4 min

Cloud Infrastructure ROI Analysis Based on FinOps and Instance Discounts

Learn how to combine FinOps culture with instance discount strategies to maximize the return on cloud server investments, controlling costs without sacrificing performance.

DevOpsEngenharia•2 min

Performance Analysis of Distributed Build Systems Under High Load

We analyze the bottlenecks of continuous integration systems under heavy stress and how task distribution impacts delivery speed. Learn how to monitor and optimize builds at scale.