Bip39 npm https://www.divephotoguide.com/user/arwyneglmp/ Implementations like SLIP39 lengthen BIP39's capabilities by splitting seed phrases into multiple shares, requiring a predefined threshold of shares to reconstruct the first seed. This tactic improves safety by getting rid of solitary details of failure. For words that only have 3 letters, there's no 4th letter. https://unsplash.com/@morganvmyg