diff --git a/Makefile b/Makefile
index f4b5b19..0d49633 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,8 @@
 index:
 	# rails g controller home index
 	# URL is then: http://localhost:3000/home/index
+
+# run this once.
+rails-setup:
+	bundle config set --local path 'vendor/bundle'
+	bundle install