I am struggling with some kind of evaluation bug with colmena. This is how my configuration looks like:

  nixosConfigurations = builtins.mapAttrs (
    name: value:
    (mkMachine {
      inherit name;
      host-config = value;
      modules = nixosModules;
      nixpkgs = lib.luj.machines.${name}.nixpkgs_version;
      system = lib.luj.machines.${name}.arch;
      home-manager = lib.luj.machines.${name}.hm_version;
    })
  ) (lib.importConfig ./machines);

  colmena =
    let
      deployableConfigurations = lib.filterAttrs (
        _: v: builtins.hasAttr "ipv4" lib.luj.machines.${v.config.networking.hostName}
      ) nixosConfigurations;
    in
    {
      meta = {
        nixpkgs = import inputs.nixpkgs { system = "x86_64-linux"; };
        nodeNixpkgs = builtins.mapAttrs (_: v: v.pkgs) deployableConfigurations;
        nodeSpecialArgs = builtins.mapAttrs (_: v: v._module.specialArgs) deployableConfigurations;
        specialArgs.lib = lib;
      };
    }
    // builtins.mapAttrs (_: v: { imports = v._module.args.modules; }) deployableConfigurations;

Strangely, nixosConfigurations.$node.config.build.toplevel doesn't evaluation as the same derivation as colmena's $node.config.build.toplevel creating difficulties to debug things and deploy my systems consistently