diff --git a/config/importmap.rb b/config/importmap.rb
new file mode 100644
--- /dev/null
+++ b/config/importmap.rb
@@ -0,0 +1,8 @@
+# Pin npm packages by running ./bin/importmap
+
+pin "application", preload: true
+#pin_all_from "app/javascript/controllers", under: "controllers"
+
+#pin "jquery" # @3.6.1
+#pin "pdfmake", to: "https://ga.jspm.io/npm:pdfmake@0.2.5/build/pdfmake.js"
+pin "jquery", to: 'jquery-local.js'