With go installed, in one terminal session:
go get github.com/tomcartwrightuk/inevitable-domain-presentation
cd $GOPATH/src/github.com/tomcartwrightuk/inevitable-domain-presentation/server
go run server.go
In another terminal session:
cd $GOPATH/src/github.com/tomcartwrightuk/inevitable-domain-presentation/client
go run client.go