During the talk, I'll construct a passwordless authentication system utilizing the open-source project, Callchimp AI. I'll introduce a project aimed at replacing conventional email-based authentication with an innovative method where users receive a one-time password (OTP) via a call, eliminating the need to remember passwords. The session will include a detailed step-by-step guide, a live demonstration, and culminate with the sharing of the complete repository for attendees to explore further.