Homelab GitOps: ArgoCD on K3s, from Zero to App-of-Apps
This tutorial walks you from manual kubectl apply to a Kubernetes cluster fully managed by git — the GitOps model — using ArgoCD on a single-node K3s. Every step explains the concept before the command. At the end you’ll have the complete workflow: edit, commit,...
IoT + Cloud: A Three-Layer Architecture
A practical approach to architecting scalable IoT systems using three well-defined layers: devices, edge, and cloud. Ideal for anyone who needs to decide where to process data without reinventing the wheel.
IoT MQTT mTLS Stack → Kafka → ksqlDB
A complete IoT data pipeline: devices publish via MQTT with mTLS, EMQX routes to Kafka, and ksqlDB turns everything into real-time SQL. On-premise, secure, and scalable.
Visualizing IBGE Maps with Python and Jupyter
A step-by-step tutorial for visualizing geographic maps of Brazil using Python, Jupyter Notebooks, and IBGE territorial data. Useful for projects that require spatial analysis.