[vdjao]

iCloud backups of photos is possible without using iCloud. I use a photo syncing app on my phone that is paired with a SMB server in my home. It just dumps new photos whenever I’m on my home network. But I don’t get iCloud syncing photos to my Mac instantly.

iCloud backups of device backups requires a Mac, then setting to sync via Wi-Fi.

[billylindeman]

does this work in the background or do you need to run the backup task? I'm setting up a home server atm and curious about this for iCloud

[vdjao]

Mine runs in the background when I get home. It uses an iBeacon device to determine when it is home. It starts the photo sync in the background. If I take photos and want to sync immediately I do that by starting the sync in the app. Remotely is a two part process —- enable vpn, then sync.

[FeloniousHam]

Google Photos will also backup your iPhone photos.