Bip39 ledger https://blogfreely.net/travenmdoq/create-your-own-distinct-bip39-mnemonic-expression-with-python-scripts Regardless that it takes advantage of BIP32 approach you may even now import BIP39 seeds into Electrum wallet. Also apart from BIp32 There's BIP44 version which some wallet use to the technology of seeds. As an example, for those who originally put in place your wallet... https://yesbookmarks.com/story20100376/unknown-bip39-wordlist-a-secret-weapon-for-bip39-mnemonic-code-converter-tool-https-linktr-ee-bip39