{
  config,
  lib,
  ...
}:

{
  imports = [ ];

  options.me = {
    optimizations.enable = lib.mkOption {
      type = lib.types.bool;
      default = false;
      example = true;
      description = "Whether we want to enable CPU optimizations (will trigger a rebuild from source).";
    };

    optimizations.arch = lib.mkOption {
      type = lib.types.str;
      default = null;
      example = "znver4";
      description = "The CPU arch for which programs should be optimized.";
    };

    optimizations.build_arch = lib.mkOption {
      type = lib.types.nullOr lib.types.str;
      default = null;
      example = "znver4";
      description = "The CPU arch for which programs should be optimized.";
    };

    optimizations.system_features = lib.mkOption {
      type = lib.types.listOf lib.types.str;
      default = [ ];
      example = [
        "gccarch-znver4"
        "gccarch-znver5"
        "gccarch-skylake"
        "gccarch-x86-64-v3"
        "gccarch-x86-64-v4"
        "benchmark"
        "big-parallel"
        "kvm"
        "nixos-test"
      ];
      description = "The list of CPU features that should be enabled on this machine.";
    };
  };

  config = lib.mkMerge [
    (lib.mkIf config.me.optimizations.enable (
      lib.mkMerge [
        {
          nixpkgs.hostPlatform = {
            gcc.arch = config.me.optimizations.arch;
            gcc.tune = config.me.optimizations.arch;
          };
        }
      ]
    ))
    (lib.mkIf (config.me.optimizations.build_arch != null) (
      lib.mkMerge [
        {
          # Enable cross-compiling
          nixpkgs.buildPlatform = {
            gcc.arch = config.me.optimizations.build_arch;
            gcc.tune = "generic";
            system = "x86_64-linux";
          };
        }
      ]
    ))
    (lib.mkIf (config.me.optimizations.system_features != [ ]) (
      lib.mkMerge [
        {
          nix.settings.system-features = lib.mkForce config.me.optimizations.system_features;
        }
      ]
    ))
  ];
}