nvim.nix/config/plugins/editor/treesitter.nix

{pkgs, ...}: {
  # Tree-sitter is a parser generator tool and an incremental parsing library.
  plugins.treesitter = {
    enable = true;

    # Options provided to the require('nvim-treesitter.configs').setup function.
    settings = {
      highlight = {
        enable = true; # Enable syntax highlighing.
      };
      indent = {
        enable = true; # Enable auto indentation.
      };
    };

    # Highlight `extraConfigLua` as lua.
    nixvimInjections = true;
    # Install all grammar packages.
    grammarPackages = pkgs.vimPlugins.nvim-treesitter.allGrammars;
  };
}