The CLI infrastructure here is probably the most advanced CLI integration written on joomla/application and served as a model for all of the CLI integrations used in the .org Framework apps before I decided to build something based on symfony/console. The way it's built though has it as an almost totally segregated application and not something that's just "native" in the application stack, plus it required inlining all of the Joomla\Application\Cli namespace in order to upgrade everything to use Framework 2.0 packages.

The CLI integration here should be rewritten to use joomla/console as its foundation.