Bip39 Ian Coleman. The passphrase is just not chosen from the predefined list of 2048 words – it might be any word or phrase you select. What constitutes a "good wallet" is one that has clear, very easy to entry documentation on supported BIP requirements, derivation paths, and recovery procedures. https://enrollbookmarks.com/story18932641/ian-coleman-bip39-https-linktr-ee-bip39-bip39-words-secrets