Hi Guix, in the past weeks I’ve restored some unused servers and turned them into a secondary build farm. It consists of 12 servers of which 11 are currently in use (I broke one by accidentally deleting the bootloader, oops).
The head of this build farm is available as <https://berlin.guixsd.org>. It currently builds substitutes for x86_64. Feel free to use it to satisfy your substitution needs. You will have to authorize the build farm’s signing key to use the substitutes: --8<---------------cut here---------------start------------->8--- wget https://git.savannah.gnu.org/cgit/guix/maintenance.git/plain/hydra/keys/guix/berlin.guixsd.org-export.pub sudo su guix archive --authorize < berlin.guixsd.org-export.pub exit --8<---------------cut here---------------end--------------->8--- This build farm uses Cuirass, which is still much less convenient than Hydra, but I hope that by using it in production we will have a better understanding of what features we will need to implement next. I should also say that I have previously observed truncation of substitutes on slow connections and I suspect that there’s a problem with the firewall settings at this site. I’ll keep investigating this. Thanks to Ludo and Andreas for the assistance with debugging the configuration and setting up DNS, and to the MDC Berlin (the institute where I spend most of the daylight hours of the week) for not only letting me use the servers but also for hosting them. -- Ricardo