The primary use for these packages is to test Compat, which is also why the oldest version packaged in 24.3. If possible, older releases could also be supported but as of writing there is no need to do so.
To use these packages, clone the repository and invoke a Guix command
of your choice using
-L. E.g. if you want to start Emacs 26.3
without X support and no custom configuration (might be an issue if
you have a custom configuration), run this command in the repository
guix shell -L . firstname.lastname@example.org -- emacs -q
For issues, requests, questions, comments, improvements and/or complaints or anything else please send a message to my public inbox.