how to set up mutt with keybase?

I guess it's possible to set up mutt with keybase.
I'd like to see a basic guide for this.

(Feel free to close this issue, I'll be happy knowing that someone might add a link here at some point and that I'll be informed about that.)

The issue requests a basic guide for setting up mutt with Keybase. Start by checking whether the Keybase project or website already documents this integration and identify the appropriate documentation location. Done means a clear guide or link is added for the setup.

Written by the indexing model from the issue text.