Source code for Mastering Go, 4th edition Code repositories for the 1st, 2nd and 3rd edition of Mastering Go are available at https://github.com/PacktPublishing/Mastering-Go https://github.com/PacktPublishing/Mastering-Go-Second-Edition https://github.com/mactsouk/mastering-Go-3rd