Does one deployment run many stores?
No. One Hibou deployment serves one WhatsApp number and one store. The catalog, payment accounts, and team console belong to that store. A second store needs its own deployment. There is no shared signup on this website.
From the THREADLY deployment
The live deployment is THREADLY's: one WhatsApp number, THREADLY's WooCommerce store, and THREADLY's payment accounts. Hibou Printtech Pvt Ltd operates that store.