Whit Jackson designed one that seems to be built making use of HTML/Javascript (GitHub url). He also had a website where you could generate the addresses client aspect, however it seems to get down now. GitHub - danielewood/vanityssh-go: vanityssh-go lets you generate ED25519 private keys with vanity public keys This https://legit-directory.com/listings12719770/fascination-about-%E9%92%B1%E5%8C%85%E9%9D%93%E5%8F%B7%E5%9C%B0%E5%9D%80%E7%94%9F%E6%88%90%E5%99%A8