{
  description = "Rosa's NixOS configurations";

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

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

    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
  };

  outputs =
    {
      self,
      disko,
      home-manager,
      nixpkgs,
    }:
    let
      mkSystem =
        host:
        {
          extraModules ? [ ],
          system ? "x86_64-linux",
        }:
        nixpkgs.lib.nixosSystem {
          inherit system;
          modules = [
            home-manager.nixosModules.home-manager
            ./hosts/${host}
            ./hosts/${host}/hardware-configuration.nix
            ./modules
            { networking.hostName = host; }
          ]
          ++ extraModules;
        };
      pkgs = nixpkgs.legacyPackages.x86_64-linux;
    in
    {
      devShells.x86_64-linux.default = pkgs.mkShellNoCC {
        nativeBuildInputs = with pkgs; [ shellcheck ];
      };

      formatter.x86_64-linux = pkgs.nixfmt;
      nixosConfigurations = builtins.mapAttrs mkSystem {
        meowbook = {
          extraModules = [
            disko.nixosModules.disko
          ];
        };

        the-meowchine = { };
      };
    };
}