Using entropy for user-friendly strong passwords

This post details the implementation of an entropy-based password strength meter for PlanetScale's signup form. It explains the concept of password entropy, demonstrates its superiority over specific rule-based validation, and outlines the technical approach using Ruby on Rails, the `strong_password` gem, and the `auto-check-element` web component. The post includes code snippets for the frontend form and backend controller logic, as well as a visual representation of the password meter.