this derivation will be built:
  /nix/store/500dng7ilv472mlisz3fam59npjg6jky-switch-to-configuration.drv
building '/nix/store/500dng7ilv472mlisz3fam59npjg6jky-switch-to-configuration.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=21&system=aarch64-darwin'
building '/nix/store/500dng7ilv472mlisz3fam59npjg6jky-switch-to-configuration.drv' on farm.numtide.com:50051
switch-to-configuration> mac02: building 500dng7ilv472mlisz3fam59npjg6jky-switch-to-configuration.drv

upload niks3: ok