argunix: this attribute failed at evaluation time, before any build started.
attribute: nixosConfigurations.atlas

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

       … while evaluating derivation 'nixos-system-atlas-26.05.20260630.95ca1e2'
         whose name attribute is located at «github:nixos/nixpkgs/95ca1e203c0750115fd4a6f17d5a245dfe6b1edd?narHash=sha256-JC9PjqKYG9ve5U8aDOLQipp3%2BKLANBHUvGdLZlxzdKI%3D»/pkgs/stdenv/generic/make-derivation.nix:647:11

       … while evaluating attribute 'buildCommand' of derivation 'nixos-system-atlas-26.05.20260630.95ca1e2'
         at «github:nixos/nixpkgs/95ca1e203c0750115fd4a6f17d5a245dfe6b1edd?narHash=sha256-JC9PjqKYG9ve5U8aDOLQipp3%2BKLANBHUvGdLZlxzdKI%3D»/nixos/modules/system/activation/top-level.nix:63:7:
           62|       allowSubstitutes = false;
           63|       buildCommand = systemBuilder;
             |       ^
           64|

       … while evaluating the option `environment.etc."systemd/system".source':

       … while evaluating the option `systemd.units."zigbee2mqtt.service".text':

       … while evaluating definitions from `/nix/store/bdn0zqq9mqdc9ccwfnamx4lax9163xr1-source/nixos/modules/system/boot/systemd.nix':

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

       error: The option `systemd.services.zigbee2mqtt.serviceConfig.RestartSec' has conflicting definition values:
       - In `/nix/store/bdn0zqq9mqdc9ccwfnamx4lax9163xr1-source/nixos/modules/services/home-automation/zigbee2mqtt.nix': 10
       - In `/nix/store/d1v7jscaa8ydacl5dmxjsfjck79x5382-source/modules/nixos/zigbee2mqtt.nix, via option flake.nixosModules.zigbee2mqtt': "30s"
       Use `lib.mkForce value` or `lib.mkDefault value` to change the priority on any of these definitions.