Moved THEME into its own file, added safe_get_image to prevent crash if image is not present, stubbed worker and some other bits for later.

lib/worker.rb

@@ -0,0 +1,29 @@
+module W3DHubLauncher
+  class Worker
+    def initialize
+      @threads = []
+
+      # listen for requests from frontend
+      listener = Thread.new { listen }
+      # connect to and monitor GSH web service
+      @threads << Thread.new { game_server_hub_websocket }
+      # connect to and monitor Backend web service
+      @threads << Thread.new { backend_websocket }
+
+      listener.join
+    end
+
+    def listen
+      loop do
+        request = Ractor.receive
+        pp request
+      end
+    end
+
+    def game_server_hub_websocket
+    end
+
+    def backend_websocket
+    end
+  end
+end