Ship Like a Pro: Real CI/CD from Staging to Production

Build a robust CI/CD pipeline covering deployments, code quality, security, and automation. Learn practical best practices and pitfalls from staging to production

Decoupling the Core: An Introduction to Hexagonal Architecture

A practical guide to designing Spring Boot applications with Hexagonal Architecture, from domain modeling and use cases to adapters, testing, and long-term maintainability.

Self-Hosting n8n on Raspberry Pi: HTTPS, DDNS & Automated Backups

A full guide on running n8n on Raspberry Pi with Docker, HTTPS, DDNS, PostgreSQL, reverse proxy, and automated backups. Production-ready, secure, and resilient.

API-First with OpenAPI Generator: From Spec to REST API and Type-Safe SDKs

This guide demonstrates a contract-first API development workflow using OpenAPI Generator with Maven in Java, covering the complete lifecycle from specification to production-ready REST API and client SDK.

Building a Cloud-Native SaaS Backend on GCP

Cloud-native SaaS backend on GCP: Python microservices, intelligent load balancing via health, readiness, latency & failure-aware routing. Practical GKE, Cloud Run, VPC, IAM tips.

Authenticating REST services with OAuth2

REST services authenticated with an OAuth2 Client for Java