https://github.com/jamesob/bitcoin-github-scrape
https://github.com/klebs6/bitcoin-rs
https://github.com/bitcoin-data/github-metadata-backup-bitcoin-bitcoin
https://github.com/jimmysong/programmingblockchain
https://github.com/Blockchain-Technology-Lab/software-decentralization