The autorenewal without further auth is really useful, it well simulate fiat subscriptions ux. No clink is just the transport protocol, via nostr relays (no http calls). The lightning.pub (LND) node in the other site will generate bolt11 invoices every time they are needed, and the woocommerce plugin will serve them to the frontend for the user to pay sats with any lightning wallet, does it matter if is custodial, non-custodial, trustodial, fa(r)ke-odial.