Sorry. It was a typo. Should've been shorty (<- see, I can type!). That's how things start. Anyway.
It all started as an experiment to use SPDY and Go in one project. A shortener is pretty easy, so why not (and others did it, too).
go get code.google.com/p/gorilla/mux
go build -o shroty
./shroty -http :6666
Sometimes later, you might also need:
go get github.com/simonz05/godis
Do what you want with it. I don't care.