Chat multiple users

it supports multiple users logged in and a guest user in the chat room. it displays the user's name (or 'guest') and the message that they send
You're duplicating George's work.

1. Talk to him about if he's already pushed something similar
2. Ask if he's okay with pushing your changes or if he'd prefer to push his own code.

I mentioned you're duplicating his work, and I'm not sure if you communicated this with him. This would not be considered good practice in a work environment.