Automated system that creates and manages identical cloud infrastructure across Development, Staging, and Production environments using code.
Created a system where you write code (using Terraform) to define what cloud resources you need (servers, databases, networks), and it automatically creates identical setups for Development (testing), Staging (pre-production), and Production (live). 
When you want to make changes, you submit them through GitHub, and the system automatically checks for problems, requires approval for production changes, and applies them safely. 
No more clicking through AWS console manually.