If you are syncing your Application Folder (or any other) with a local folder on a disk, you can specify which file or folders you want to sync. This is a very convenient way to keep your package smaller and clean.
Here is how you do it:
Figure: Edit Filters dialog
❌ Figure: Bad Example - Synced folder contains files that are not supposed to be deployed
✅ Figure: Good Example - Synced folder is filtered so that it includes only files we want to deploy