Reading over the Aura frame details, it seems that they have some partnership with Google that is yielding them (continued) special access. Unfortunately, as a community integration, I have no such pull 
Unfortunately, it seems that this integration -- in its current state -- will stop working end of day tomorrow, as Google is pulling the authorization scope currently used. The new/remaining APIs/scopes allow for temporary shared access to selected photos (for a week), and for applications to have access to photos/albums that the application itself has created/uploaded. Plausibly this could be addressed by downloading the photos we get access to, and then re-uploading to an application-created album, but it does not scale well -- it duplicates the storage usage as we are creating our own copy of each photo.
With the new API changes, Google no longer offers a way to grant access to a user's full photos library.
