Rohlik Enhanced

A browser extension that enhances the Rohlik.cz shopping experience by displaying Nutri-Score ratings for products.

Note: this codebase was developed mostly by Claude 3.5 using Windsurf, so expect some weirdness. I was heavily optimizing for speed over quality.

Development Setup

Firefox

cp manifest.firefox.json manifest.json
Open Firefox and go to about:debugging
Click "This Firefox"
Click "Load Temporary Add-on"
Select the manifest.json file from the extension directory

Chrome

cp manifest.chrome.json manifest.json
Open Chrome and go to chrome://extensions/
Enable "Developer mode" in the top right
Click "Load unpacked"
Select the extension directory

Features

Displays Nutri-Score ratings next to products in the product list
Calculates scores based on nutritional information
Caches results in IndexedDB
Updates dynamically as you browse the site