diff --git a/tui.lua b/tui.lua
new file mode 100644
index 0000000..f2b932f
--- /dev/null
+++ b/tui.lua
@@ -0,0 +1,14 @@
+local ltui        = require("ltui")
+local application = ltui.application
+local event       = ltui.event
+local rect        = ltui.rect
+local window      = ltui.window
+local demo        = application()
+
+function demo:init()
+    application.init(self, "demo")
+    self:background_set("blue")
+    self:insert(window:new("window.main", rect {1, 1, self:width() - 1, self:height() - 1}, "main window", true))
+end
+
+demo:run()