Photo backup solution

I'm using Synology DiskStation DS220+ as my backup solution which I host at my parents house and it is cool and works well. I use open source tools for backing up things via ssh to it so that I theoretically could take the hard drive connect it to a computer and get all my files back, even if they decide to discontinue their software.

There is only one thing which I'm using their software for, the photo backup, because they:

• have backup apps for Android and iOS for my Family
• automatic categorization of photos in the backup
• face recognition
• geo coordinates
• timeline

I've been investing quite some time to manually train it for our faces. I even wrote software which hooks in into the sqlite database to show random pictures of specific people on our TV at home.

But I'm always afraid that they will just discontinue the software and all my work will be for nothing. Sadly I haven't seen any free software alternative which would tag photos and create automatic person albums or albums which are time and geographically connected.

• Nextcloud Photos is so bare-bones that I could just use the files naked with almost the same effect
• Gallery but it looks and feels like a web app from the 90ies and also doesn't have any of those features mentioned before

I'd love to find a good solution especially for automatic categorization and sharing which would be free software, so if you have any tips, I'm all ear.