Option to select which subscription I want to sync with my other devices

Add an option to choose only specific subscriptions we want to sync between devices. What I mean: I have my own subscriptions, my wife has her own subsciptions, we have subscriptions that we listen together. We only want to see those we share in gpodder sync.

I understand Nextcloud is it’s own thing, but there could be a way in the app to hide the selected subscription from the list of RSS sent to Nextcloud.