Google Drive–backed Ambient Photos
What we evaluated
We built and tested a Google Drive folder prototype for Ambient Photos. It used Google’s drive.file permission, a selected-folder flow, and a dedicated Drive OAuth connection separate from Google Calendar.
Why we decided against it
The core integration worked technically, but validation showed that drive.file did not reliably expose pre-existing or later-added photos in the selected folder for automatic rotation. Making that behavior dependable would have required broader persistent Drive access. The added permission ambiguity and OAuth/token complexity were more than we were comfortable asking households to accept for this convenience feature. This is our product-boundary judgment, not a claim that Google Drive is insecure.
What we chose instead
App-managed private photos with ComingUp-owned media identity, purpose-built storage, and private delivery independent of an external photo library or its OAuth availability.
What would have to change
A materially narrower, clearer, purpose-specific provider access model would be required before reconsideration.