Hello! I've finally getting serious into Guix and wanting to start 
contributing to it immediately to help expand the package list.

I've followed the video tutorials from the official website and some 
referencing to the manual and I got my first package. I have to say it's 
quite straightforward coming from someone with no experience in software 
packaging.

Anyways, attached to my email is my patch adding Hexyl 
(https://github.com/sharkdp/hexyl) into the list.

I'll be looking forward to add more packages. :)


Best regards,

Gabriel Arazas