[tannhaeuser]

Switched to using SD cards for Time Machine-like backup (using BackInTime) plus monthly archival on big disks on Linux for many years now; requires some organization due to space restrictions, though. Distinctly remembering when iPhoto (5?) wanted me to convert/store my private photos "in the database" rather than as plain files on my old PowerBook which I refused to do however, knowing all too well this would've been a bad idea.

[cl3misch]

Aren't SD cards pretty limited in terms of write durability?

[jnieminen]

There are high endurance SD cards, but eventually those will have also IO problems.