{
  description = "My system configuration.";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-25.05";

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

    nixos-hardware.url = "github:NixOS/nixos-hardware/master";
  };

  outputs =
    { nixpkgs, nixpkgs-stable, home-manager, nixos-hardware, ... }:
    let
      system = "x86_64-linux";
    in
    {
      nixosConfigurations = {
        TARS = nixpkgs.lib.nixosSystem {
        inherit system;
        modules = [
          ./nixos/configuration.nix
          nixos-hardware.nixosModules.framework-amd-ai-300-series         
        ];
        specialArgs = {
          pkgs-stable = nixpkgs-stable.legacyPackages.${system};
        };
        };
      };

      homeConfigurations.zeph = home-manager.lib.homeManagerConfiguration {
        pkgs = nixpkgs.legacyPackages.${system};
        modules = [ ./home-manager/home.nix ];
      };

    };

}