I see. You know, nostr:npub1g53mukxnjkcmr94fhryzkqutdz2ukq4ks0gvy5af25rgmwsl4ngq43drvk says that there is no network effect with direct messages, but the whole reason I use Signal is because they managed to get half of my family onto their network. Is Keychat or 0xChat intrgrated with Signal's network? Can I can call my family with Nostr?