Ledger Nano Bip39 If you would like to accomplish a deep dive, and recognize the exact mechanisms of how BIP39 wallets transform mnemonic codes right into a binary seed, there is a description in the design document at . You'll be able to see the entire source code in standalone, https://socialwebconsult.com/story3942663/bip39-seed-generator-the-single-best-strategy-to-use-for-seed-phrase-generator