diff --git a/dummy/Gemfile b/dummy/Gemfile
index 6f99b80..7f716c7 100644
--- a/dummy/Gemfile
+++ b/dummy/Gemfile
@@ -6,9 +6,10 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 gem "vue_r" , path: "../"
 
 gem "rails"
-gem "bootsnap" , "1.15.0"
 
 gem "puma"  , "5.6.5"
 gem "haml-rails"
 gem "sqlite3"
 gem "active_hash"
+
+gem "opal-rails"
diff --git a/dummy/Gemfile.lock b/dummy/Gemfile.lock
index 3e98957..6333b73 100644
--- a/dummy/Gemfile.lock
+++ b/dummy/Gemfile.lock
@@ -76,8 +76,6 @@ GEM
       minitest (>= 5.1)
       tzinfo (~> 2.0)
     ast (2.4.2)
-    bootsnap (1.15.0)
-      msgpack (~> 1.2)
     builder (3.2.4)
     concurrent-ruby (1.2.0)
     crass (1.0.6)
@@ -108,7 +106,6 @@ GEM
     method_source (1.0.0)
     mini_mime (1.1.2)
     minitest (5.17.0)
-    msgpack (1.6.0)
     net-imap (0.3.4)
       date
       net-protocol
@@ -196,8 +193,8 @@ PLATFORMS
 
 DEPENDENCIES
   active_hash
-  bootsnap (= 1.15.0)
   haml-rails
+  opal-rails
   puma (= 5.6.5)
   rails
   sqlite3
diff --git a/dummy/app/assets/javascript/opal_main.js.rb b/dummy/app/assets/javascript/opal_main.js.rb
index 35fd141..776367e 100644
--- a/dummy/app/assets/javascript/opal_main.js.rb
+++ b/dummy/app/assets/javascript/opal_main.js.rb
@@ -1 +1,6 @@
-require "vue_r"
+require 'opal'
+require 'promise'
+require 'native'
+require 'browser/setup/mini'
+require "vue_r/application"
+require "vue_r/mounter"
diff --git a/dummy/app/views/images/show.html.haml b/dummy/app/views/images/show.html.haml
index 9928a52..be3c93d 100644
--- a/dummy/app/views/images/show.html.haml
+++ b/dummy/app/views/images/show.html.haml
@@ -3,15 +3,17 @@
     = #@image.attributes
 
   .flex.justify-center
-    %a.underline{ e_click: "bg_change" , r_class: 'back'}
+    %a.underline{ e_click: "bg_change" , r_class: 'back(50)'}
       {{ back }}
 :opal
   class Clicker < VueR::Application
     def bg_change
       self.state = !self.state
     end
-    def back
-      self.state ? "bg-cyan-50" : "bg-cyan-200"
+    def back(arg)
+      puts "Arg:#{arg}:#{arg.class}"
+      str = self.state ? "bg-cyan-50" : "bg-cyan-200"
+      str + " " + arg.to_s
     end
   end
 
diff --git a/dummy/config/application.rb b/dummy/config/application.rb
index 9b9479e..82cac35 100644
--- a/dummy/config/application.rb
+++ b/dummy/config/application.rb
@@ -1,6 +1,7 @@
 require_relative "boot"
 
 require "rails/all"
+require 'sprockets/railtie'
 
 # Require the gems listed in Gemfile, including any gems
 # you've limited to :test, :development, or :production.
diff --git a/dummy/config/boot.rb b/dummy/config/boot.rb
index 988a5dd..2820116 100644
--- a/dummy/config/boot.rb
+++ b/dummy/config/boot.rb
@@ -1,4 +1,3 @@
 ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
 
 require "bundler/setup" # Set up gems listed in the Gemfile.
-require "bootsnap/setup" # Speed up boot time by caching expensive operations.
diff --git a/dummy/config/environments/development.rb b/dummy/config/environments/development.rb
index 8500f45..1b75218 100644
--- a/dummy/config/environments/development.rb
+++ b/dummy/config/environments/development.rb
@@ -57,8 +57,8 @@ Rails.application.configure do
   config.active_record.verbose_query_logs = true
 
   # Suppress logger output for asset requests.
-  config.assets.quiet = true
-
+  config.assets.quiet = false
+  config.assets.debug = true
   # Raises error for missing translations.
   # config.i18n.raise_on_missing_translations = true
 
diff --git a/opal/vue_r.rb b/opal/vue_r.rb
index 77eedd7..776367e 100644
--- a/opal/vue_r.rb
+++ b/opal/vue_r.rb
@@ -1,6 +1,6 @@
 require 'opal'
-require 'native'
 require 'promise'
+require 'native'
 require 'browser/setup/mini'
 require "vue_r/application"
 require "vue_r/mounter"
diff --git a/opal/vue_r/application.rb b/opal/vue_r/application.rb
index 974d53d..e657184 100644
--- a/opal/vue_r/application.rb
+++ b/opal/vue_r/application.rb
@@ -65,27 +65,33 @@ module VueR
 
     def send_self(expression)
       method , args = decompose(expression)
-      puts "Sending #{method}(#{args.join(',')})"
-      self.send method , *args
+      method = method.strip
+      puts "Sending #{method}(#{args&.join(',')})"
+      if(args == nil or args.empty?)
+        self.send( method )
+      else
+        self.send( method , *args )
+      end
     end
 
     def decompose(expression)
       matches = expression.match(/\b[^()]+\((.*)\)$/)
-      return expression if matches.blank?
+      return expression if matches.nil?
       method = expression.split("(").first
-      return [method , [] ] if m[1].empty?
-      args = m[1].split(",").collect{| arg | transform_arg(arg) }
+      puts "METHOD:#{method}"
+      return [method , [] ] if matches[1].empty?
+      args = matches[1].split(",").collect{| arg | transform_arg(arg) }
       return [method , args]
     end
 
-    def transform_arg(arg)
-      arg = arg.strip
-      puts "Arg:#{arg}:"
+    def transform_arg(argument)
+      arg = argument.strip
+      #puts "Arg:#{arg}:"
       return true if arg == "true"
       return false if arg == "false"
       return nil if arg == "nil"
-      return arg.to_i if arg == arg.to_to_s
-      arg
+      return arg.to_i if arg == arg.to_i.to_s
+      return arg
     end
   end
 end