Kotlin bip39 https://www.hometalk.com/member/176312665/elva1377050 Though it utilizes BIP32 approach it is possible to still import BIP39 seeds into Electrum wallet. Also other than BIp32 there is BIP44 version which some wallet use for the technology of seeds. He is also the creator of essentially the most welcoming and aesthetically satisfying, but https://mediajx.com/story25425444/bip39-min-js-download-bip39-ian-coleman-for-dummies-https-x-com-tundra838554