I don't know it this has been discussed before, but it would be useful to have an optional tagging system. I would like to mark packages that are useful for bioinformatics which can be outside the bioinformatics.scm. Likewise it would be useful to mark packages that are security related, network related, desktop related, x11 related etc.
I propose an open metadata tagging system where package maintainers can just enter any keyword in a list. Like the license tag, they can be approved by GNU Guix and have metadescriptions somewhere. This is about searching for information. One useful output would be to present collections of packages on the www or in RDF/JSON. Pj.
