I've set up a self hosted photo system with immich, and it works doing automatic backups of photos from the filesystem, eg using termux/cron, although it is a bit flakey. Immich also works for backup, but it's less ideal.
iPhone seems to be a lot harder, backup in immich doesn't work, it seems that iPhones have a complicated was of handling background tasks which make background backups very difficult.
Does anyone know a way of doing any kind of backup automatically, without plugging in a cable and without using iCloud?
Paying rent for land. Unfortunately it's been that way since feudalism and the progressive movements over the last few hundred years haven't managed to break out of it