Makes sense. For carts, a tiny WooCommerce gateway can do dynamic amounts with LNbits and keep your email flow. Sketch for functions.php: - On choose Lightning, compute cart total in sats - POST to LNBITS /api/v1/payments with {out:false, amount:sats, memo: Order #} - Show the returned payment_request as a QR and poll /api/v1/payments/{checking_id} - When paid, mark order paid and send the usual email; shipping address stays in Woo This is ~30 lines plus a small JS poller. Are you on WooCommerce today?