It might make your life easier if they are socialized to each other.
How old is the puppy? If it’s a super little one, that’s actually easy as pie to get them properly introduced, compared to an adult dog with zero bun experience or rambunctious juvenile which will take more time/patience.
If it’s a lil 8-10weeker pup, I’d set them on the couch together and watch what happens. If the puppy gets too active (not likely in this sleepy puppy stage) or causes too much stimulation for the bunny, simply place the puppy on the floor with a highly desirable chew toy to distract him and leave him be. These slow, supervised interactions could built quite the friendship if approached in a thoughtful way! If the acclimation is rushed or forced at all, it may backfire and cause over stimulation in pup and a boxing-mad or fearful bunny
patience is key.
If you are starting with an older pup (5months+), I would only do those supervised interactions when the pup is about ready for bed and is super sleepy after being well exercised. This will mean the pup is drop dead tired and won’t be running 100miles an hour in bunny excitement. If it is an older puppy, I would teach “Leave it!” before the introduction. They are rambunctious haha. But something as tiny as a yorkie/chihuahua will probably always be small enough to get it’s butt whipped by a bunny if it came right down to it haha
hopefully that’s never the case!!
In the case of my 5 year old beagles meeting my 10week old bunny for the first time, it was probably about a month before they were on the floor together. LOADS of just smelling, petting for being calm, no go lay down and chew your toy if over excited etc etc. Take your time making the bunny nice and boring for the dog so the dog has zero interest in that lazy overgrown potato that doesn’t even make sounds 