piggieback-chestnut.cljs

  (figwheel-sidecar.repl-api/repl-env (:figwheel-system reloaded.repl/system) nil)
  ;; =>
  ;; clojure.lang.ArityException: Wrong number of args (2) passed to: repl-api/repl-env
  ;; clojure.lang.Compiler$CompilerException: clojure.lang.ArityException: Wrong number of args (2) passed to: repl-api/repl-env, compiling:(user.clj:49:3)

  (:figwheel-system reloaded.repl/system)
  ;; => #figwheel_sidecar.system.FigwheelSystem{:system #atom[#<SystemMap> 0x49742821], :system-running true}

  (-> reloaded.repl/system
      (get-in [:figwheel-system :system])
      (deref)
      (keys)) ;; => (:figwheel-server "autobuild-app")

  (figwheel-sidecar.repl-api/repl-env (:figwheel-system reloaded.repl/system))
  ;; =>
  ;; Figwheel System not initialized.
  ;; Please start it with figwheel-sidecar.repl-api/start-figwheel!

  (figwheel-sidecar.repl-api/repl-env "autobuild-app")
  ;; =>
  ;; Figwheel System not initialized.
  ;; Please start it with figwheel-sidecar.repl-api/start-figwheel!

  (-> reloaded.repl/system
      (get-in [:figwheel-system :system])
      (deref)
      (get "autobuild-app"))
  ;; =>
  ;; #figwheel_sidecar.components.cljs_autobuild.CLJSAutobuild{:build-config {:id "app", ...

Derp, see https://github.com/SevereOverfl0w/Ymbryne/blob/master/fireplace-chestnut.adoc ... it's figwheel-sidecar.system/repl-env not figwheel-sidecar.repl-api/repl-env