https://www.digitalocean.com/community/tutorials/how-to-install-go-on-ubuntu-18-04
https://linuxize.com/post/how-to-install-go-on-ubuntu-18-04/
wget https://dl.google.com/go/go1.13.linux-arm64.tar.gz
sha256sum go1.13.linux-amd64.tar.gz
sudo tar -C /usr/local -xzf go1.13.linux-amd64.tar.gz
go version
go build
./hello
installation
testing