I don’t see why that wouldn’t be possible, but I think that takes a lot more work. It’s easier to just have a node that can be reached with one of those URI links that simply watches relays for any of your follows or notes, and then saves them, then you connect to it with the link from whatever client you like and you just load from your personal node. 

 yeah. the way you describe with a pear enabled relay is just transparent to nostr users and implementation specific