Being locked out of my Gmail account is something I have worried about in the past. I have moved all essential email traffic to a domain I control. I do worry

Being locked out of my Gmail account is something I have worried about in the past. I have moved all essential email traffic to a domain I control. I do worry about my wife and her photos though. She uses Apple photos primarily but syncs them to Google Photos. Is there an open-source cloud photo-management solution like Nextcloud or something?