playlist editor draft

assets/src/index.js

@@ -32,7 +32,7 @@ window.aircox = {
      * Initialize main application and player.
      */
     init(props=null, {config=null, builder=null, initBuilder=true,
-                      initPlayer=true, hotReload=false}={})
+                      initPlayer=true, hotReload=false, el=null}={})
     {
         if(initPlayer) {
             let playerBuilder = this.playerBuilder
@@ -44,6 +44,9 @@ window.aircox = {
             this.builder = builder
             if(config || window.App)
                 builder.config = config || window.App
+            if(el)
+                builder.config.el = el
+            
             builder.title = document.title
             builder.mount({props})