{
  description = "main config";

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

  outputs = { nixpkgs, ... }: {
    nixosConfigurations.rainix = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules = [ ./configuration.nix ]; 
    };
  };
}