Hi Thomas,
> I'm reconfiguring my system after almost one year without updates > (meaning guix-daemon in my system profile is at version > 0.16.0-8.7ba2b27, dating from january 2019). This should be fine. The daemon doesn’t change much and even in the past upgrades to the daemon have been backwards compatible. > I ran guix pull (now at commit c109d32) and had to rebuild *a lot* > (guile, git, I believe multiple versions of gcc, ...). Now I'm > reconfiguring, and it feels like I'm still building the whole world > and not getting any substitutes (despite messages such as 'updating > substitutes from https://ci.guix.info' and 'updating substitutes from > https://berlin.guixsd.org')... berlin.guixsd.org (soon to disappear) is an old name for ci.guix.gnu.org, as is ci.guix.info. Double check /etc/guix/acl to make sure that the public key for ci.guix.gnu.org is listed there. -- Ricardo