figwheel question

dev.clj

(println "loading deps")

(require
  '[figwheel-sidecar.system :as sys]
  '[com.stuartsierra.component :as component]
  '[cljs.build.api :as build])

(def system
  (sys/create-figwheel-system (sys/fetch-config)))

(defn start []
  (alter-var-root #'system component/start))

(defn node-repl []
  (sys/build-switching-cljs-repl (:figwheel-system system) "node"))

(defn browser-repl []
  (sys/build-switching-cljs-repl (:figwheel-system system) "browser"))

(defn release []
  (build/build
    "src"
    {:main 'fmp.core
     :output-to "node/release.js"
     :output-dir "release"
     :target :nodejs
     :verbose true})
  (println "Done. Run ./scripts/upload"))

(defn debug []
  (build/build
    "src"
    {:main 'fmp.debug
     :output-to "node/release.js"
     :output-dir "release"
     :target :nodejs
     :verbose true})
  (println "Done. Run ./scripts/upload"))

(println "ready, do (start) and (node-repl) or (browser-repl)")