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

nix-eval-jobs error:
error:
       … while evaluating the attribute 'config.system.build.toplevel'
         at «github:nixos/nixpkgs/a0374025a863d007d98e3297f6aa46cc3141c2f0?narHash=sha256-9mUW6gNwoN2SWc/l0fW4svPNOulXLl8ijqKyeSOGgJE%3D»/lib/modules.nix:402:9:
          401|         options = checked options;
          402|         config = checked (removeAttrs config [ "_module" ]);
             |         ^
          403|         _module = checked (config._module);

       … while calling the 'seq' builtin
         at «github:nixos/nixpkgs/a0374025a863d007d98e3297f6aa46cc3141c2f0?narHash=sha256-9mUW6gNwoN2SWc/l0fW4svPNOulXLl8ijqKyeSOGgJE%3D»/lib/modules.nix:402:18:
          401|         options = checked options;
          402|         config = checked (removeAttrs config [ "_module" ]);
             |                  ^
          403|         _module = checked (config._module);

       … while evaluating the module argument `pkgs' in "/nix/store/9figz32vbiblaw5x3li1hc8q9qwlwf27-source/nixos/modules/services/hardware/bluetooth.nix":

       … noting that argument `pkgs` is not externally provided, so querying `_module.args` instead, requiring `config`

       … while evaluating the option `nixpkgs.localSystem':

       … while evaluating the option `nixpkgs.system':

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

       error: Neither nixpkgs.hostPlatform nor the legacy option nixpkgs.system has been set.
       You can set nixpkgs.hostPlatform in hardware-configuration.nix by re-running
       a recent version of nixos-generate-config.
       The option nixpkgs.system is still fully supported for NixOS 22.05 interoperability,
       but will be deprecated in the future, so we recommend to set nixpkgs.hostPlatform.