I listened to the Guy interview yesterday, too and had the same thought. They did not go into much detail. Just that it magically works and that sounds intriguing but I also think I remember that some part of it was closed source and thus a no-go for me.

I want to understand the stack and the promises of the Pear stack. Can I run a Pear enabled nostr relay using a pubkey at home such that I can connect to it with my Pear enabled mobile client from wherever? I bet the devs would claim so and that would be cool but with not much buzz on nostr I feel like there must be something wrong with it.