{ pkgs, ... }:
{
  # https://github.com/ast-grep/ast-grep/issues/658
  # https://github.com/ast-grep/ast-grep/issues/30
  # https://github.com/ast-grep/ast-grep.github.io/issues/98

  /** /
  home.packages = with pkgs; [
    ast-grep
  ];

  xdg.configFile."ast-grep/sgrammar.yaml".source = (pkgs.formats.yaml { }).generate {
    ruleDirs = "rules";
    #customLanguages = (lib.mapAttrs (k: v: TODO) pkgs.tree-sitter-grammars)
    customLanguages.nix = {
      libraryPath = "${pkgs.tree-sitter-grammars.tree-sitter-nix}/parser";
      extensions = [ "nix" ];
    };
  };

  /**/
}