

This will be an unpopular suggestion here but why not just go all in on iCloud? It’s reasonably inexpensive for not data-hoarding amounts of data, reasonably secure and E2E encrypted. Given the low cost, zero setup if they’re already Apple people and lack of admin I think it is ideal for them.
I pay for iCloud storage because I want HomeKit Secure Video cloud storage (I also have a local copy on disk).





Fair enough, I knew my take wouldn’t be a popular one here. In all fairness if you are using Apple products the iCloud sync brings all of the metadata with the data on every device that accesses it.
While I don’t have any illusions that Apple has my back they do have a lot invested in keeping people’s trust in their ecosystem. The automated on-device CSAM scanning kerfuffle that they backed away from shows that they are sensitive to the threat of people leaving their walled garden.
Another fairly easy to implement local solution that wouldn’t be an admin headache is to put a Mac mini with a bunch of attached storage on the network and use it as a file server. I do that for my PleX.