Stroller with room for a baby and dog?

Let me explain. We’ve got a 10 year old pug who loves to walk but doesn’t have the energy he used to. We live in a city and I want to be able to take our baby on long walks. I don’t want to leave out our pug just because he can’t make it that far. I’d like the option of being able to put him in the stroller with my baby (safely of course) when he gets tired. Also looking for something that’s more city tailored.

Do you know of any brands/models that could accommodate a baby and a 25lb pug?