luis_felipe, 
I can now access the services of Guix machines in the local network using simple names like <host>.local instead of IP addresses.
To get this functionality:
❶ Open your OS configuration file
❷ Import (gnu packages nss)
❸ Set the operating-system's "name-service-switch" field as follows(name-service-switch %mdns-host-lookup-nss)
❹ Reconfigure the OS
sudo guix system reconfigure path/to/your/os-config.scm
More info:
https://guix.gnu.org/es/manual/devel/en/html_node/Name-Service-Switch.html
