Shopify Pickup Availability Script

I need a small, self-contained script for my Shopify store that lists every pickup location where the current product is available. The list should appear directly on the product page (or in any section I drop the snippet into) and render in a clean, text-based list view.

For each location the script must:
• show the store name exactly as it appears in Shopify Locations
• Link store name to Google maps
• indicate clearly whether the item is "In Stock" or "Out of Stock" at that location with green or red dot. (IE: Green Dot, Location 1: In Stock)

No filtering is required; customers should see the full list at a glance. The solution should work with native Shopify inventory data, so please use Liquid, Storefront API, or AJAX endpoints—whatever keeps it lightweight and maintainable without external apps.

When you hand it over I’ll need:
1. The script/snippet with installation instructions
2. Notes on any theme settings or permissions I must enable

If everything drops in cleanly and updates stock status in real time, we’re done.