I think that also one needs to be familiar with modifying the guix daemon service to allow substitutes be downloaded so that you don't have to build derivations

I think that also one needs to be familiar with modifying the guix daemon service to allow substitutes be downloaded so that you don't have to build derivations [0], [1]. Once you modify the guix daemon service and approve the substitute server keys with `guix archive`, your experience should be much faster. [0]: https://guix.gnu.org/manual/en/html_node/Substitute-Server-Authorization.html https://guix.gnu.org/manual/en/html_node/Substitute-Server-A... [1]: https://guix.gnu.org/manual/en/html_node/Getting-Substitutes-from-Other-Servers.html https://guix.gnu.org/manual/en/html_node/Getting-Substitutes...