Change profile name

How do I change my profile name? By this I mean the name at the end of the URL path: "keybase.io/profilename."

I'm really hoping there's a way to do this without having to create a whole new account.

Thanks.

No file, test, or entry point is identified. Start by locating the account and profile-name handling in the repository, then confirm whether the URL name can be changed without creating a new account; a maintainer-confirmed scope is needed before implementation can be considered done.

Written by the indexing model from the issue text.