Bip39 Mnemonic Generator. You'd then do a standard recovery having a command like the just one below. (This command works by using a sample wallet file bunlded with BTCRecover) No, there's no technical limit for the duration of the passphrase. Having said that, for the sake of memorability and practicality, https://orangebookmarks.com/story18832954/bip39-mnemonic-https-linktr-ee-bip39-bip39-words-secrets