Did you catch that page there aside from the manual, where they describe how to install it on Ubuntu? https://artanis.dev/blog/build-0.6-ubuntu.html it seems quite detailed, maybe it wouldn't be so bad to get through.

Otherwise, you don't have to change OS to run guix the package manager, it can be installed on a "foreign distro", i.e., on top of Debian, or something else. Details here https://guix.gnu.org/manual/en/html_node/Installation.html

You would then use your "guix" command at the terminal to download any of the 29,253 packages here https://packages.guix.gnu.org/ (or just artanis).