A self-service DevOps sandbox platform with auto-destroying environments, dynamic Nginx routing, and a chaos engineering toggle — plus every painful deployment war story. The Challenge Imagine you're on a DevOps team and every developer needs their own isolated environment to test their code. Spinning them up manually is slow. Forgetting to tear them down wastes resources. And nobody ever tests what happens when things actually break in production. That was the problem I set out to solve. The result? A fully self-service DevOps Sandbox Platform — a miniature internal Heroku where environments are short-lived by design, chaos is a feature, and everything cleans itself up automatically. What I didn't plan for was the deployment war that followed.…