Generate Ethereum gas efficient addresses with leading zeros

https://medium.com/coinmonks/on-efficient-ethereum-addresses-3fef0596e263

• Install rust (https://www.rust-lang.org/learn/get-started)

• git clone https://github.com/iam4x/vanitygen-bip39.git
• cargo build --release
• ./target/release/vanitygen-bip39 --help

• --threads (number of threads to use, default to max)
• --words (mnemonic words count 12 or 24, default to both)
• --score (min score results to display, default to 400 which is 4 leading zeros addresses)
• --webhooks (post webhook to call when matching criteria address is found)

• release binaries for linux/windows/macOS
• release docker image
• improve documentation