{

  description = "My first flake!";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; # which is the branch. You should use the last version or the unstable
    home-manager.url = github:nix-community/home-manager/
  }; # git links

  outputs = { self, nixpkgs, ... }: 
    let
      lib = nixpkgs.lib; # we pass lib to be able to use ie: lib.nixosSystem and others
    in {
    nixosConfigurations = {
      nixosaku = lib.nixosSystem {
	system = "x86_64-linux";
	modules = [ ./configuration.nix ];	
      };
    };
  };

}