Every time you update an app, this entire process happens in seconds CI/CD = Continuous Integration and Continuous Deployment. It's the reason your favorite apps can push updates daily without breaking. Here's how it works: 1. Developer writes code 2. Code gets pushed to GitHub 3. System automatically builds it 4. Hundreds of tests run in seconds 5. If everything passes, it automatically goes live No manual uploads. No human error. Just smooth, automated deployments. This is how Netflix, Spotify