Clojurians Log v2

Hi there, a configuration issue here, I am not certain I'm going the right way and it is not necessarily a figwheel issue: I have a REST app based on stuartsierra/component that I'd like to add clojurescript to. I copied what's relevant to the project.clj, from a working setup I have of a re-frame (cljs only ) app that I have tested and works.. I am still in the dark as to how pages will be served and if clojurescript will be compiled to more than the one route. So I have the system starting up with a (set-init [_] (dev-system)) <- this starts the components (db, pedestal, jetty) ... and I have a standard reframe:

(defn mount-root []
  (re-frame/clear-subscription-cache!)
  (reagent/render [views/main-panel]
                  (.getElementById js/document "app")))
                                                                                                                                                   
(defn ^:export init []
  (re-frame/dispatch-sync [::events/initialize-db]) 
  (dev-setup)
  (mount-root))

I'd like to know how to marry the systems.. (perhaps there are no conflicts) My project.clj which I am certain needs looking is in this gist -> https://gist.github.com/manandearth/d1342de71dd31255ca74d65e65d50953 The error message from figwheel is in this other gist -> https://gist.github.com/manandearth/ce9cdcc1b8a72894fd82639a89c51a22 It starts as follows:

Failed to compile build :dev from ["src/cljs"] in 0.571 seconds.
----  Exception    ----

  com.cognitect.transit.TransitFactory.writer(Lcom/cognitect/transit/TransitFactory$Format;Ljava/io/OutputStream;Ljava/util/Map;Lcom/cognitect/transit/WriteHandler;Ljava/util/function/Function;)Lcom/cognitect/transit/Writer;

----  Exception Stack Trace  ----