Any plans to make them seamless and uniform?
Yes, in the long term. Couchbase Mobile has a somewhat richer data model including revision histories and attachments. There’s design work going on to move some of that down to the bucket level, so SG doesn’t have to synthesize it. That will make it possible to have the CB APIs operate on SG buckets without screwing things up. Exciting stuff! But it’s still far enough out that we can’t yet promise it or quote schedules.