vimPlugins.nvim-treesitter: use lib.concatMapAttrs

  #   ocaml-interface

  #   tree-sitter-ocaml-interface

  #   tree-sitter-ocaml_interface

  builtGrammars = generatedGrammars // lib.listToAttrs

    (lib.concatLists (lib.mapAttrsToList

  builtGrammars = generatedGrammars // lib.concatMapAttrs

    (k: v:

      let

        replaced = lib.replaceStrings [ "_" ] [ "-" ] k;

      in

        map (lib.flip lib.nameValuePair v)

          ([ "tree-sitter-${k}" ] ++ lib.optionals (k != replaced) [

            replaced

            "tree-sitter-${replaced}"

          ]))

      generatedDerivations));

      {

        "tree-sitter-${k}" = v;

      } // lib.optionalAttrs (k != replaced) {

        ${replaced} = v;

        "tree-sitter-${replaced}" = v;

      })

    generatedDerivations;

  allGrammars = lib.attrValues generatedDerivations;