To obtain the go-ethereum

I think, therefore I am.

1 Get the go-ethereum code

git clone https://github.com/ethereum/go-ethereum

2 Build the Geth program

make geth

3 If you see some errors related to header files of Mac OS system library, install XCode Command Line Tools, and try again.

xcode-select --install

4 You can now run build/bin/geth to start your node.

golang <3