Enabling agile functionality updates using multi-component application

Systems and methods are disclosed for providing a multi-component application, including a first and second component. Functionality of the application may be easily and rapidly modified by modification to the first component, without requiring modification to the second component. The first component may be implemented locally at a client device, while the second component is implemented remotely. While modification of the second component may require privileges of a remote location, a user of a client device may modify the first component while maintaining interoperability and compatibility with the second component, thereby enabling the end user to modify functionality of the multi-component application. In some instances, different versions of a first component are provided, and an end user of a client device is enabled to specify which version of the first component should be used.