{ ... }:
{
  imports = [ ../en-us ];
  perSystem =
    { config, pkgs, ... }:
    {
      helix.languages = {
        language = [
          {
            name = "nix";
            language-servers = [
              "nil"
              "harper-ls"
              "typos"
            ];
            formatter = {
              command = "${config.treefmt.build.wrapper}/bin/treefmt";
              args = [
                "--stdin"
                ".nix"
                "--quiet"
              ];
            };
            auto-format = true;
          }
        ];
        language-server.nil.command = "${pkgs.nil}/bin/nil";
      };
      treefmt.programs.nixfmt = {
        enable = true;
        strict = true;
      };
    };
}