Click the button above or manually add the custom repository in HACS. Restart HA
After installing via HACS, add the frontend resource:
/hacsfiles/shopping-list-manager/shopping_list_card.js
Click the button above or manually add via Settings → Devices & Services.
type: custom:shopping-list-card title: Shopping List list_id: groceries
Use the ⚙️ cog button in the card to configure settings.