I'm thinking about buying a HomePod mini as a Christmas gift for someone who lives in a house that already has a HomePod (Original). They share the WiFi, but can they exist separately and work off of each others own account? I've read a few things but the articles/feedback was somewhat outdated and maybe things have changed? I don't want to buy it as a gift if it's going to be a headache for both people in the home. Any thoughts?