The tutorial uses the Clojure build tool leiningen, so this needs to be installed before running the tutorial. Theoretically, you can use any text editor to create Clojure code. There are many diehard ...

Install Leiningen and Light Table. There are two tutorials in the moment, but more will come. If you are new to Clojure or need a refresh open overview.clj on Light Table and follow the intructions.