devise-one-time-passwordable

https://github.com/nejdetkadir/devise-otp

This Devise extension adds the ability for users to authenticate with one-time passwords, enabling a more secure session mechanism. When logging in, users will receive a unique one-time password that they can use to access the system. This password is valid for only one use, ensuring that each login is secure and that users cannot reuse an old password to access their account. This extension provides a simple and effective way to improve the security of your application and protect against password attacks.