nostr:npub17cqu3gdlqhgss0gtv78hf8kkpcn67fgrhq2nm6duccgjlszhgdlqv5umsz nostr:npub1fmhk33ta7scnlmhdur3xvju4w29qlc0kare9pkqupt2efe4lae8qashpey how would you test data portability?