{
  description = "NixOS config";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "github:NixOS/nixpkgs/nixos-24.05";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { nixpkgs, nixpkgs-stable, home-manager, ... }@inputs: {
    nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules = [
        ./configuration.nix
        {
          nixpkgs.overlays = [
            (final: prev: {
              stable = import nixpkgs-stable {
                system = prev.system;
              };
            })
          ];
        }
        home-manager.nixosModules.home-manager {
          home-manager.useGlobalPkgs = true;
          home-manager.useUserPackages = true;
          home-manager.users.ahnwuoa = import ./home.nix;
        }
      ];
    };
  };
}