{ inputs, ... }: {
  den.aspects.kernel = {
    nixos = { pkgs, ... }: {
      nixpkgs.overlays = [ inputs.nix-cachyos-kernel.overlays.pinned ];

      # boot.kernelPackages = pkgs.cachyosKernels.linuxPackages-cachyos-latest;

      nix.settings.substituters = [ "https://attic.xuyh0120.win/lantian" ];
      nix.settings.trusted-public-keys = [ "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc=" ];
    };
  };
}