diff --git a/demo/config.js b/demo/config.js
deleted file mode 100644
index 1fc420c..0000000
--- a/demo/config.js
+++ /dev/null
@@ -1,11 +0,0 @@
-/**
- * This file is part of the "malle" library
- * Copyright 2021 Nicolas CARPi @ Deltablot
- * License MIT
- * https://github.com/deltablot/malle
- */
-
-// this file allows us to figure out if we are in dev or demo/prod mode
-// the Dockerfile will change 'dev' to 'prod' at build time
-// there are no concepts of "env" in browser, so this is how we do it
-export default { env: 'dev' }
diff --git a/demo/main.js b/demo/demo.js
similarity index 88%
rename from demo/main.js
rename to demo/demo.js
index 05ce056..92efcb2 100644
--- a/demo/main.js
+++ b/demo/demo.js
@@ -4,15 +4,7 @@
  * License MIT
  * https://github.com/deltablot/malle
  */
-
-// figure out if we are in dev mode or demo/prod mode by loading this file
-import config from './config.js';
-
-// in dev mode the lib is in the parent folder, but in the docker image it is in the current dir
-let libPath = './main.js';
-if (config.env === 'dev') {
-  libPath = '../dist/' + libPath;
-}
+const libPath = '../dist/main.js';
 
 // use a dynamic named import here
 const { Action, InputType, Malle } = await import(libPath);
diff --git a/demo/index.html b/demo/index.html
index 3457551..01cc3b5 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -51,7 +51,7 @@ <h2>Adding a placeholder</h2>
       <p><code>data-ma-placeholder='you@example.com'</code><br>Your email is: <span data-malleable='true' data-ma-placeholder='you@example.com' data-ma-type='email'>niko@example.com</span></p>
     </div>
 
-    <script src='main.js' type='module'></script>
+    <script src='demo.js' type='module'></script>
 
   </body>
 </html>