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+---
+'playroom': minor
+---
+
+Add custom entry file support
+
+You can provide a custom entry file via the `entry` option, which is a path to a file that runs some code before everything else. For example, if you wanted to apply a CSS reset or other global styles, polyfills etc.:
+
+```js
+import '../path/to/your/theming-system/reset';
+import '../path/to/your/theming-system/global-styles.css';
+```