He's not really saying it should be mixed with your app's source code (He's talking more about mobile apps with a server backend rather than web apps). More th

He's not really saying it should be mixed with your app's source code (He's talking more about mobile apps with a server backend rather than web apps). More that it should be hosted in source control alongside your application code. Want to switch your server to a different platform? Add a new setup script for that platform to your 'setup' folder in source control.