diff --git a/config.ru b/config.ru
new file mode 100644
index 0000000000000000000000000000000000000000..75b8ed5d6d7f0b1002da5e5fa79b1c0af32af30d
--- /dev/null
+++ b/config.ru
@@ -0,0 +1,4 @@
+# frozen_string_literal: true
+
+require './gl-rt-bridge'
+run Sinatra::Application