{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
    home-manager.url = "github:nix-community/home-manager";
    nix-darwin.url = "github:lnl7/nix-darwin";
    nixos-hardware.url = "github:NixOS/nixos-hardware";
  };

  outputs =
    inputs@{ self, ... }:
    let
      # Import helper functions from lib/
      localLib = import ./lib { inherit inputs; };
    in
    {
      # Darwin (macOS) hosts
      darwinConfigurations = {
        mightymac = localLib.mkDarwinHost {
          system = "aarch64-darwin";
          hostname = "mightymac";
          username = "gene.liverman";
        };
      };

      # NixOS hosts
      nixosConfigurations = {
        rainbow-planet = localLib.mkNixosHost {
          system = "x86_64-linux";
          hostname = "rainbow-planet";
          username = "gene";
          additionalModules = [
            inputs.nixos-hardware.nixosModules.dell-xps-13-9360
          ];
        };
      };

      # Home Manager (only) users
      homeConfigurations = {
        gene = localLib.mkHomeConfig {
          system = "x86_64-linux";
          homeDirectory = "/home/gene";
          username = "gene";
        };
      };
    };
}