PrestaShop 8 Free-Shipping Module

I’m looking to add a small but essential feature to my PrestaShop 8 store: the option to flag one or more specific products so they always ship for free.

Here’s what I need:

• A fully installable, PrestaShop 8-compatible module that lets me select individual products in the back-office and mark them as “Free Shipping.”
• At checkout the module must automatically set the shipping cost of those marked items to €0, without affecting normal rates for everything else.
• The change should work seamlessly with all native carriers, taxes, and combinations, and display the “Free Shipping” notice in the cart and order summary.
• Clean, override-free code that follows PrestaShop best practices, plus an uninstall option that removes every trace.
• Basic documentation: install steps, configuration screen overview, and a short note on extending the logic later if I decide to add category-wide rules.

The store is a fresh PrestaShop 8 build with no other shipping customizations, so you’ll have a blank slate. If you’ve built shipping or discount modules before, let me know—links to GitHub repos or live sites will help me pick quickly.