Bip39 Seed Generator. First of all you'll want to retail store it Independently from the seed. Obtaining your seed and your passphrase in the same locale defeats the purpose of aquiring a passphrase to start with. BIP39 specifies a list of 2048 words from which the mnemonic phrase is selected. https://mysocialfeeder.com/story4504364/bip39-mnemonic-https-linktr-ee-bip39-bip39-words-an-overview