Three Spring Boot microservices, a Next.js frontend, four AI agents in tmux — and a prompt injection in a downloaded tooling file that one of the agents recognized and refused on its own. An honest account of building an Instagram auto-poster from scratch, including the bugs you never read about in success stories.
Uncle Bob's tmux tool lets four Claude agents work on your code in separate Git worktrees – Specifier, Coder, Refactorer, Architect, each in its own window with an approval button. I tested it on CounterApp and learned more about Git worktrees than I wanted to. Verdict up front: disciplined, but not plug and play.
We launched a marketplace with Spring Boot microservices, two Next.js frontends and Stripe. The shop was online, the products were there – but nothing showed up. A story about a single word in the JSON, a Lombok trap and a secret that never belonged in Git.
We migrated our Spring Boot backends from Railway to OpenShift. Four errors in one session – and what each reveals about the interplay of Hibernate, Liquibase, Spring Security and Kubernetes probes.
Netlify did nothing wrong. But I wanted to know what real Kubernetes control feels like. 30 days of OpenShift Developer Sandbox, a faster website – and the honest answer why we stayed where we were.
Structure, connect and secure microservices with Spring Boot – a complete practical guide with real code examples and architecture diagrams.
How RabbitMQ decouples microservices, delivers messages reliably and Spring AMQP makes integration a breeze.
Liquibase makes database migrations reproducible, versioned and safe. This guide shows the complete workflow from the first migration to rollback.
Next.js builds on React – but the differences are enormous. Server Components, App Router, Streaming: what does this mean concretely for architecture?
Clean Architecture by Robert C. Martin consistently implemented in Java/Spring Boot: layers, dependencies and why the domain must know nothing about Spring.
Playwright is the most powerful E2E testing framework. From installation to robust, maintainable tests – with Next.js examples and CI/CD integration.
Step by step from Heroku to Railway – including all the pitfalls we encountered along the way. From the pom.xml to Eureka Service Discovery.
A Netlify user received a $104,000 bill – from a single DDoS attack. Cloudflare offers free protection with unlimited bandwidth. Setup in 20 minutes, no code required.
We migrated zelkulon.com and all client projects from Vercel to Netlify – not due to technical shortcomings, but a conscious decision. Here's what really happened, including all the pitfalls.
Using Docker and Docker Compose correctly for microservices: Multistage Builds, Service Discovery, Health Checks and a complete local development environment.