https://github.com/golang/go/wiki/SettingGOPATH

export GOPATH=$HOME/go
in your bash or zsh

wherever your gopath is..

clone the repo to here (im pretty sure theres a better way though)
go/src/github.com/cnguy

so the full project ptah would be
go/src/github.com/cnguy/uci-best-app