ColdBox 4 allows you to nest modules within modules up to the Nth degree. You can package a module with other modules that can even contain other modules within them. It really opens a great opportunity for better packaging, delivery and a further break from monolithic applications. To use, just create a modules folder in your module and drop the modules there as well. You can also just create a box.json in the root of your module and let CommandBox manage your module dependencies. Here is an example of the ColdBox ORM Module: