For any iOS users that want a self hosted photo backup I can very much recommend https://www.photosync-app.com/. I set it up once years ago, never open it and still it silently backups any photo and video (original and edited) I take to WebDAV and a B2 bucket in the background, sorted in subfolders for every month.
another +1 for photosync. bought it a few years ago now and it just works in the background reliably ever since. (backing up mine and my wife’s iphone photos to a synology NAS)
It’s only good for backups though. There’s no way to browse/share memories so we reluctantly still also use Amazon photos...
1. Yeah i understand. Something more free/libre would have been a better choice. On the other hand I also like that it's quite "complete" so i don't have a lot of chances of screwing it up
2. Yeah, I only use DS Photo for backup / browsing on my phone. And Drive to replace Dropbox.
3. Not entirely sure about DS moments, as i use Photostation. In there it's basically each folder is an album (or sub/album).
PhotoSync talks to WebDAV natively. When I want to access those backups from my Mac I use Forklift (https://binarynights.com/) but even Finder and Windows Explorer can browse WebDAV storage natively.