config/packages/autofmt/default.nix

{ pkgs, ... }:
pkgs.writeShellApplication {
  name = "autofmt";
  runtimeInputs = with pkgs; [
    # include only a couple of formatters by default
    clang-tools
    deno
    dprint
    nixfmt-rfc-style
    prettierd # autofmt only runs on a local build of prettier
    rustfmt
    zig
  ];
  text = ''exec ${pkgs.nodejs}/bin/node ${./autofmt.js} "$@"'';
}