{
  description = "NixOS configuration";

  inputs = {
    # default to nixpkgs-unstable
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";

    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = inputs @ {
    nixpkgs,
    home-manager,
    ...
  }: {
    nixosConfigurations = {
      eye = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          ./hosts/eye/configuration.nix
          home-manager.nixosModules.home-manager
          {
            home-manager = {
              useGlobalPkgs = true;
              useUserPackages = true;
              users.grm = import ./hosts/eye/home.nix;
            };
          }
        ];
      };
    };
  };
}