{
  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
      pkgs = nixpkgs.legacyPackages.x86_64-linux;
      mkSystem =
        {
          additionalModules ? [ ],
          hostName,
          system ? "x86_64-linux",
        }:
        nixpkgs.lib.nixosSystem {
          modules = [
            ./hosts/${hostName}
            ./hosts/${hostName}/hardware-configuration.nix
            ./modules # include custom system modules
            ./modules/core.nix # always include core settings
            { networking.hostName = hostName; }
          ]
          ++ additionalModules;

          inherit system;
        };
    in
    {
      formatter.x86_64-linux = pkgs.nixfmt;
      nixosConfigurations = {
        the-meowchine = mkSystem {
          additionalModules = [
            home-manager.nixosModules.home-manager
          ];

          hostName = "the-meowchine";
        };

        meowbook = mkSystem {
          additionalModules = [
            disko.nixosModules.disko
            home-manager.nixosModules.home-manager
          ];

          hostName = "meowbook";
        };

        canadian-government-system = mkSystem {
          additionalModules = [ disko.nixosModules.disko ];
          hostName = "canadian-government-system";
        };
      };
    };
}