I will create shopify website

1. Cart & Checkout Logic

• Implement session-based cart management using local storage or server-side PHP sessions.
• Secure cart endpoints with nonces/tokens to prevent automated manipulation.
• Integrate webhook handlers for real-time payment confirmation (e.g., Stripe payment_intent.succeeded).

1. Performance & SEO Optimization

• WebP image compression with lazy loading for product galleries.
• Schema.org Structured Data (Product, Offer, AggregateRating) injected directly into the document header for rich search snippets.
• Query optimization using indexing on postmeta/custom tables for fast product filtering.

Are you building this as a custom WooCommerce theme/plugin, or are you creating a custom Laravel/PHP application from scratch?