{
  description = "A simple NixOS flake";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";

    home-manager = {
      url = "github:nix-community/home-manager/release-25.11";
      # The `follows` keyword in inputs is used for inheritance.
      # Here, `inputs.nixpkgs` of home-manager is kept consistent with
      # the `inputs.nixpkgs` of the current flake,
      # to avoid problems caused by different versions of nixpkgs.
      inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = { self, nixpkgs, ... }@inputs: {
    # Please replace my-nixos with your hostname
    nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
      modules = [
        # Import the previous configuration.nix we used,
        # so the old configuration file still takes effect
        ./configuration.nix
      ];
    };
  };
}