Having a flag in the command line interface that spits out the source code of the program doing the same stuff as your command is pretty cool. It's like lifting the hood and showing you what's going on. This not only helps you get a better grip on how things work but also lets you make changes to fit your needs. You can tweak or add stuff based on what you want, making the whole experience user-friendly. It's all about giving users the power to customize things their way.