Yep. Busted. The CLI's logger provider uses the Joomla\Input\Input service which doesn't read from CLI. Changing the service to Joomla\Input\Cli gets into a recursion loop with the debugger object. The CLI app service has a dependency to the monolog service, the monolog service (on CLI) has a dependency to the debugger service, and the debugger service has a dependency to the app service.

?

Looks like it's working with a workaround to set the logger to the app services in the front controllers versus in the services and fixing a couple alias references. Still need to deal with the circular references at some point.

It's working.