diff --git a/lib/bulletmark_repairer/configuration.rb b/lib/bulletmark_repairer/configuration.rb
new file mode 100644
index 0000000..4f8d6b9
--- /dev/null
+++ b/lib/bulletmark_repairer/configuration.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module BulletmarkRepairer
+  class Configration
+    attr_writer :development
+
+    def initialize
+      @development = false
+    end
+
+    def development?
+      development
+    end
+  end
+
+  class << self
+    def configure
+      yield config
+    end
+
+    def config
+      @config ||= Configration.new
+    end
+  end
+end
diff --git a/lib/bulletmark_repairer/rack.rb b/lib/bulletmark_repairer/rack.rb
index d4048c9..a58c475 100644
--- a/lib/bulletmark_repairer/rack.rb
+++ b/lib/bulletmark_repairer/rack.rb
@@ -19,8 +19,7 @@ def call(env)
           )
         end
       rescue StandardError => e
-        # TODO: handle error
-        raise e
+        raise e if BulletmarkRepairer.config.development?
       end
     end
   end