I played around with GoLang a bit as I was using the following repo to troubleshoot a Mozilla root certificate sync issue.
https://github.com/Lukasa/mkcert
I believe I had been testing a Python certificate validation utility and it uses that Mozilla cert bundle but it needed to be updated.
I think I had been successful using mkcert. It was all for the SteemYaLater, blog backup initiative I ran a while back.
In any case, it seems to be an intuitive and elegant language and also is used for SiaCoin, one of my favorite crypto projects.
Good luck in your learning endeavors.