http://c25o7knygjm3m67jy27yuynvv4pkfi25naucscmh4ubq2ggiig3v57ad.onion/en/how-to-fix-the-issue-with-ca-certificates-in-guix.html
Even searching for guix search ca-certificates doesn't
return any result, which I think is one of the pitfalls. If you are using the Guix System, nss-certs is included in the initial
configuration template as well as in the documentation, so as long as you do
not purposefully delete it, this issue should not happen.