I think the next release image for GuixSD should include wgetpaste as a tool. This would make it possible for people who are stuck in the image and who are doing the installation, to paste the config.scm or any other command output.
Are there any security concerns, or is this something we can do? If the majority should be against it, another option I can think of is that we add it to the documentation as a general suggestion to search for "pastebin" with "guix package -s pastebin" and install one of the available pastebin clients (there'll be more than one at some point). -- ♥Ⓐ ng0 | ng0.chaosnet.org