Customizing Rocket.Chat for Direct Access with Nickname Entry Post-URL Share

Hello, I am new to setting up Rocket.Chat. I understand that typically, an administrator shares a specific team URL and users can join after email verification. However, I want to customize the code so that when users click on the shared URL, they can enter just a nickname to access immediately. I would like to know if such customization is feasible and would appreciate any guidance on modifying the code for this functionality.