error:
       … while evaluating the attribute 'drvPath'
         at «https://releases.nixos.org/nixos/26.05/nixos-26.05.12250.f3a73bcf5d1c/nixexprs.tar.xz?narHash=sha256-9vaC514eu0ogJHxt6A0qQLtdfqHA15OnBVEstArd2NY%3D»/lib/customisation.nix:427:7:
          426|     // {
          427|       drvPath =
             |       ^
          428|         assert condition;

       … while calling the 'derivationStrict' builtin
         at «nix-internal»/derivation-internal.nix:37:12:
           36|
           37|   strict = derivationStrict drvAttrs;
             |            ^
           38|

       … while evaluating the option `nodes.test-update-machine.networking.interfaces':

       … while evaluating definitions from `/nix/store/jbynv157ydjc1f6nsn97c67h4q41yvjf-source/nixos/modules/hardware/facter/networking':

       … while evaluating the option `nodes.test-update-machine.hardware.facter.enable':

       … while evaluating the option `nodes.test-update-machine.hardware.facter.report':

       … while evaluating the option `nodes.test-update-machine.hardware.facter.reportPath':

       … while evaluating definitions from `/nix/store/cy9pmr064f1qh8w2mhh1h82b0rdqjqva-source/nixosModules/clanCore/nixos-facter.nix':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: gRPC QueryValidPaths on 'nix-store.geninf.io:50051' failed: error: substituter 'https://cache-local.geninf.io' is disabled