We'd like the ability for patrons to link their existing library card account with other authentication platforms such as Google, Microsoft, Apple, Linkedin, Facebook, etc.. This would provide ease of sign-in and enhanced security through features like multi-factor authentication (MFA). Patrons would register their existing library account with one of these integrations if they decided to move to this method. This has become common enough across the web that we've had patrons specifically ask for the ability to login with their Apple or Google account.