error:
       … while evaluating the attribute 'drvPath'
         at «github:NixOS/nixpkgs/f13ff45afd1bb73e640eaa08a7066dbed07e3238?narHash=sha256-zDSUbpoeo/9ZmD2%2BwXnzxoo1%2BuhL8vxc0b8yuYMKYq0%3D»/lib/customisation.nix:415:11:
          414|         // {
          415|           drvPath =
             |           ^
          416|             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 `driverConfiguration.vlans':

       … while evaluating definitions from `/nix/store/cc7ff4ysismx0c3778v8gc6b14plrz3z-source/nixos/lib/testing/driver-configuration.nix':

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

       error: The option `nodes.machine.services.spaces-signal' does not exist. Definition values:
       - In `/nix/store/dwm4hvshljmzxv0pzm9c23bfs7vhbwbb-source/modules/nixos/hermes/signal.nix':
           {
             _type = "if";
             condition = false;
             content = {
               httpPorts = { };
           ...