make own dummy, less confusing what is gem/engine and what is app

dummy/app/views/images/index.html.haml

@@ -0,0 +1,19 @@
+%h1 Listing kanta
+
+%table
+  %thead
+    %tr
+      %th
+      %th
+      %th
+
+  %tbody
+    - @kanta.each do |kantum|
+      %tr
+        %td= link_to 'Show', kantum
+        %td= link_to 'Edit', edit_kantum_path(kantum)
+        %td= link_to 'Destroy', kantum, method: :delete, data: { confirm: 'Are you sure?' }
+
+%br
+
+= link_to 'New Kantum', new_kantum_path

dummy/app/views/images/show.html.haml

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+#app
+  .flex.justify-center
+    = #@image.attributes
+
+  .flex.justify-center
+    %a.underline{ e_click: "bg_change" , r_class: 'back'}
+      {{ back }}
+:opal
+  puts "here1"
+  class Clicker < VueR::Application
+    def bg_change
+      self.state = !self.state
+    end
+    def back
+      self.state ? "bg-cyan-50" : "bg-cyan-200"
+    end
+  end
+
+  puts "here2"
+  click = Clicker.new(bg: 'bg-cyan-200' , state: true)
+  click.mount("#app")
+
+  puts "here3"