flash stream

app/controllers/application_controller.rb

@@ -1,2 +1,5 @@
 class ApplicationController < ActionController::Base
+  private
+
+  def flash_stream = turbo_stream.replace(:notification, partial: 'layouts/notification')
 end

app/controllers/flash_controller.rb

@@ -5,7 +5,7 @@ class FlashController < ApplicationController
   def turbo_notice
     flash[:notice] = 'From Turbo'
     flash[:alert] = 'Alert Turbo'
-    render turbo_stream: turbo_stream.replace(:notification, partial: 'layouts/notification')
+    render turbo_stream: flash_stream
   end
 
   def redirect_with_notice