Bip39 buffer is not defined https://penzu.com/p/2ea6922b70254307 Deciding upon New Wallet when setting up a COLDCARD® generates 24 seed words that you should history. People words help you recover your Bitcoin cash if your wallet is dropped, stolen, or wrecked. Your seed words come from a list of 2048 words specified https://www.anime-planet.com/users/zoriuswxxq