{inputs, ...}: {
  flake.overlays.default = final: prev: {
    fairfax = final.callPackage ./derivations/fairfax.nix {};
  };
  perSystem = {
    pkgs,
    system,
    ...
  }: {
    _module.args.pkgs = import inputs.nixpkgs {
      inherit system;
      overlays = [
        inputs.self.overlays.default
      ];
    };

    packages = {
      inherit (pkgs) fairfax;
    };
  };
}