diff --git a/app/lib/digital/index.js b/app/lib/digital/index.js
new file mode 100644
index 0000000..e9eee5a
--- /dev/null
+++ b/app/lib/digital/index.js
@@ -0,0 +1,3 @@
+'use strict'
+
+const exec = require('../exec')
\ No newline at end of file