dissoc-guix are packages and services that are to be add to guix via channels.
Add the channel to the file: ~/.config/guix/channels.scm If the file does not exist it may need to be created.
(append %default-channels
(list (channel
(name 'dissoc-guix)
(url "https://github.com/dissoc/dissoc-guix.git")
(branch "main")
(introduction
(make-channel-introduction
"d644d7247155056b1d62977ae2cf8f989f84c11a"
(openpgp-fingerprint
"95D3 7A96 EC54 79CE 6082 5831 81FF 5EC7 66ED 8C39"))))
...))