anchor.diff:    , darwin
     , flake-utils
     , home-manager
  -  , neovim-nightly-overlay
     , nixpkgs
     }:
       let
  
positive.code:         config = {
            allowUnfree = true;
          };
          overlays = [
            neovim-nightly-overlay.overlay
          ];
        };
  
        mkCommonConfig =
  
negative.code:       url = "github:nix-community/home-manager";
        inputs.nixpkgs.follows = "nixpkgs";
      };
    };
  
    outputs = inputs @
  