Magento_Developer module
The Magento_Developer module provides functionality to make it easier to develop in Magento 2.
Extensibility
Extension developers can interact with the Magento_Developer module. For more information about the Magento extension mechanism, see Magento plugins.
The Magento dependency injection mechanism enables you to override the functionality of the Magento_Developer module.
A lot of functionality in the module is on JavaScript, use mixins to extend it.
