Not specifically the government, but there is a github[0] for amendments to the Constitution.<p>[0] <a href="https://github.com/JesseKPhillips/USA-Constitution" rel="nofollow">https://github.com/JesseKPhillips/USA-Constitution</a>
In addition to the Federal Register someone else already mentioned, I hear there is a company working on blockchain as an immutable record of laws and other government documents. I don't remember the name.