Technical Articles

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

All categories Arquitetura Automação Backend Carreira DevOps Eletrônica Engenharia Frontend Hardware IA Negócios Produtividade Redes

IAEngenharia•4 min

How to Build Autonomous AI Agents with LangGraph and Python

Learn how to build cyclical workflows and graph-based decision-making for artificial intelligence agents in production environments using LangGraph.

HardwareAutomação•3 min

How to read legacy industrial sensors with ESPHome and MQTT

Learn how to integrate legacy industrial sensors into your building automation system using ESPHome and the lightweight MQTT protocol.

DevOps•5 min

How to build a power failure resilient Kubernetes cluster

Learn how to build a resilient Kubernetes cluster in homelabs, ensuring data persistence, etcd quorum, and automatic recovery after power outages.

HardwareDevOps•4 min

Server losing RAM? How to fix Linux kernel memory leaks

Learn how to diagnose and resolve hidden RAM memory leaks in production bare-metal servers by investigating the kernel, page cache, and hardware drivers.

Redes•4 min

How to set up automatic dual-WAN failover with local BGP

Learn how to configure advanced internet link redundancy on edge routers using local BGP and automatic failover for critical environments.

EletrônicaHardware•5 min

How to design a workbench surge protection circuit

Learn how to size varistors, thermal fuses, and transient suppressors to safeguard sensitive electronics equipment on your workbench against voltage spikes.

RedesDevOps•5 min

Microservices connection drops? How to trace with eBPF

Learn how to track ephemeral network failures in microservices using eBPF on Linux without modifying application code.

Redes•5 min

How to configure VLANs and inter-VLAN routing on switch

Learn step by step how to configure VLANs on managed switches to isolate IoT devices and apply strict Layer 2 and Layer 3 firewall rules.

HardwareAutomação•3 min

How to build a smart DIY UPS with ESP32 and inverter

Learn how to design an uninterruptible power system for your homelab using a deep-cycle battery, pure sine wave inverter, and ESP32 telemetry.

BackendArquitetura•6 min

Why use Row-Level Security in PostgreSQL to isolate tenants

Learn how to isolate customer data in a shared database using PostgreSQL Row-Level Security, ensuring robust multi-tenant data protection through session context.