This personal channel is used for packages that are not (yet) available in GNU Guix or nonguix, but I’d like to use.
Add this channel definition to your ~/config/guix/channels.scm:
(channel
(name 'nutguix)
(url "https://github.com/nuthub/nutguix")
(branch "main")
(introduction
(make-channel-introduction
"1fe9a666b2e6c3398a5057f861986d3183bdab2a"
(openpgp-fingerprint
"99A2 CE39 CD81 BD0A 0423 3B9D A998 EA3B DF45 39EF"))))