How do I push an app to the Search Head Deployer's shcluster/ directory?

I know I would run `splunk apply shcluster-bundle` on the Search Head Deployer to push apps to Search Head Cluster Members. The apps that get pushed are located under the `shcluster/` directory on the Search Head Deployer. I also know that when I create a new app (using the SPLUNK web UI), the app is put in the `etc/apps/` directory on a Search Head Cluster Member. How does that app then get to the Search Head Deployer's `shcluster/` directory? Do I manually have to put it there? Should it automatically go there? Or is there a command-line command I have to run to get it there?