read in a local.conf.php in the root for overrides

config/phpvms.php

@@ -1,11 +1,19 @@
 <?php
 
+/**
+ * DO NOT MODIFY THIS FILE DIRECTLY!
+ * It will just make upgrading (a little) more difficult
+ *
+ * Create a local.conf.php in the root (in the same directory
+ * as your .env file), and then copy this file into there, and
+ * make your changes there.
+ */
+
 return [
 
     /**
      * Pick one of:
      *  dollar, euro, gbp, yen, jpy, rupee, ruble
      */
-    'currency' => env('PHPVMS_CURRENCY', 'dollar'),
-
+    'currency' => 'dollar',
 ];