GHC isn't available for aarch64, only i686-linux and x86_64-linux. (ins)efraim@3900XT ~/workspace/guix$ guix weather ghc --system=aarch64-linux computing 0 package derivations for aarch64-linux... looking for 0 store items on https://ci.guix.gnu.org... https://ci.guix.gnu.org Backtrace: 8 (primitive-load "/home/efraim/.config/guix/current/bin/…") In guix/ui.scm: 2154:12 7 (run-guix-command _ . _) In ice-9/boot-9.scm: 1736:10 6 (with-exception-handler _ _ #:unwind? _ # _) 1731:15 5 (with-exception-handler # …) In guix/scripts/weather.scm: 546:9 4 (_) In guix/build/utils.scm: 569:23 3 (every* # …) In guix/scripts/weather.scm: 547:19 2 (_ "https://ci.guix.gnu.org") 197:22 1 (_ _ ()) In ice-9/boot-9.scm: 1669:16 0 (raise-exception _ #:continuable? _) ice-9/boot-9.scm:1669:16: In procedure raise-exception: Throw to key `numerical-overflow' with args `("/" "Numerical overflow" #f #f)'. -- Efraim Flashner אפרים פלשנר GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted