pkgs.callPackage

let
  isLinux = pkgs.stdenv.hostPlatform.isLinux;
in pkgs.callPackage

  # TODO on macos we should pass pkgs.emacsMacPort here but it's currently broken
  # FIXME upstream a change with attr overrides breaks due to a missing attribute `passthru`
  emacsPackages = pkgs.emacsPackagesFor pkgs.emacs;

  # NOTE: won't need to overrideAttrs on emacsMacport once the below PR is released
  # https://github.com/NixOS/nixpkgs/pull/133260/
  emacsPackages = pkgs.emacsPackagesFor (if isLinux then pkgs.emacs else pkgs.emacsMacport.overrideAttrs(old: {
    passthru = old.passthru or {};
  }));

    ./local_config.nix