You can manage your Scrimba environment variables via a pop-up modal that saves to your user settings, meaning they’re global for your whole Scrimba account. You can access this modal in a number of ways:
From your settings page, there’s an option titled “Update environment variables”.
Inside any scrim, you can click the three-dot menu (…) on the timeline and select “Edit environment”
Use the keyboard shortcut ⌘ Command + ⇧ Shift + E / Win + ⇧ Shift + E.
Note that if you’re currently viewing a scrim, you’ll need to click outside the editor (e.g. the gray bar at the top of the scrim) first before this shortcut will work.
Simply manually add #env
to the end of any Scrimba URL.