This tutorial guides you through building a password generator in Go using the Fyne library for a graphical user interface. To create this application, you'll need to set up your project, install dependencies, import necessary packages, and define a function to generate passwords. The `PasswordGenerator` function uses random numbers to select characters from predefined sets (lowercase letters, uppercase letters, numerical digits, and special characters) to create unique passwords. The main function creates a user interface with an input box for the password length, a button to trigger password generation, and a text label to display the generated password. Upon running the application, you can enter a desired password length and click the "Generate" button to generate a secure and random password.