Bip39. Entropy values must be sourced from a solid supply of randomness. This suggests flipping a good coin, rolling a fair dice, noise measurements etc. Do NOT use phrases from guides, lyrics from tracks, your birthday or steet tackle, keyboard mashing, or everything you're thinking that is random, mainly because https://directoryfrenzy.com/listings12974958/bip39-word-list-pdf-https-linktr-ee-bip39-the-ultimate-guide-to-bip39-vs-slip39