When running guix in a VM I usually run into various connectivity problems. VirtualBox on Windows seems to do some helpful FTP transparent proxying which breaks everything and in another case I don't have internet connectivity due to how the VM is set up.
Is there a way to make guix-daemon talk to a proxy when downloading substitutions and source archives? I tried starting it with http_proxy set, but I'm not sure it responded to it (as I'm writing this ISTR having read and tested that an updated guix does this right). This is only for http, though. Lots of source archives get fetched over ftp, is there some way to make it get ftp over a proxy too?
