Hey Brett!

It's been a while, but I've finally found time to revisit this 
patch.

On Wed, Jan 08 2020, Brett Gilio wrote:
> ... we /should/ combine this with the ELPA importer in its 
> current tradition: `guix import elpa -a melpa`. That seems 
> preferable to me, as it would avoid the need to deprecate a 
> command flag in our UX.

I've done this.

Carlo