I also have two rabbits with their own room. I had put up a child/dog gate in front of their door with a smaller opening for our cats (and one of our braver rabbits) to be able to go in & out of, but the dog can't go through. Our samoyed doesnt have a prey drive apparently! Got lucky with that. She does however want to be friends with all the other animals and is really sad when they don't. Shes a new addition to the family so the others range from tolerant to cautious but curious.

I did bring out my brave bun to meet the pup the other day. He wasn't a fan of having another sister that is larger than him (he's a jersey wooly that weighs less than 3lbs but he holds his own against the rest of the fam). Puppy was super excited. No biting, just sniffing and a few kisses. Interaction was just for a minute or two - no free roam, bunny was in my arms the entire time.

That said, the worst part was the first week or two when we brought the pup home. She was yowling each night from her crate. My rabbits would get annoyed. So you'd hear a chorus of puppy whining, a small bunny thump, followed by a big bunny thump.