{
  pkgs,
  x11 ? false,
  ...
}: let
  emacs =
    if x11
    then pkgs.emacs-unstable
    else pkgs.emacs-pgtk;
in
  pkgs.emacsWithPackagesFromUsePackage {
    # Your Emacs config file. Org mode babel files are also
    # supported.
    # NB: Config files cannot contain unicode characters, since
    #     they're being parsed in nix, which lacks unicode
    #     support.
    # config = ./emacs.org;
    config = ./config.org;

    # Whether to include your config as a default init file.
    # If being bool, the value of config is used.
    # Its value can also be a derivation like this if you want to do some
    # substitution:
    #   defaultInitFile = pkgs.substituteAll {
    #     name = "default.el";
    #     src = ./emacs.el;
    #     inherit (config.xdg) configHome dataHome;
    #   };
    defaultInitFile = pkgs.substituteAll {
      name = "default.el";
      src = ./init.el;
    };

    # Package is optional, defaults to pkgs.emacs
    package = emacs;

    # By default emacsWithPackagesFromUsePackage will only pull in
    # packages with `:ensure`, `:ensure t` or `:ensure <package name>`.
    # Setting `alwaysEnsure` to `true` emulates `use-package-always-ensure`
    # and pulls in all use-package references not explicitly disabled via
    # `:ensure nil` or `:disabled`.
    # Note that this is NOT recommended unless you've actually set
    # `use-package-always-ensure` to `t` in your config.
    alwaysEnsure = false;

    # For Org mode babel files, by default only code blocks with
    # `:tangle yes` are considered. Setting `alwaysTangle` to `true`
    # will include all code blocks missing the `:tangle` argument,
    # defaulting it to `yes`.
    # Note that this is NOT recommended unless you have something like
    # `#+PROPERTY: header-args:emacs-lisp :tangle yes` in your config,
    # which defaults `:tangle` to `yes`.
    alwaysTangle = true;

    # Optionally provide extra packages not in the configuration file.
    # This can also include extra executables to be run by Emacs (linters,
    # language servers, formatters, etc)
    extraEmacsPackages = epkgs: [
    ];

    # Optionally override derivations.
    override = final: prev: {
      #weechat = prev.melpaPackages.weechat.overrideAttrs (old: {
      #  patches = [./weechat-el.patch];
      #});
    };
  }