Bip39 Mnemonic. Entropy values must be sourced from a powerful source of randomness. This means flipping a fair coin, rolling a fair dice, sound measurements and so forth. Tend not to use phrases from guides, lyrics from music, your birthday or steet handle, keyboard mashing, or nearly anything you're thinking https://tools-directory.com/listings600601/bip39-npm-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-standard