I was just reading about PiNet. I know it’s meant mostly for teachers in a classroom, but I’m guessing you could use something like that and have each pi log into the main server. It would be easy to customize for each person in the household and/or each location. It would be an interesting project. I have several pi’s and an old laptop, I might just try this. One for the bathroom mirror and one in the living room, I like the idea.