{ pkgs ? import <nixpkgs> { }
, stdenv ? pkgs.stdenv
, lib ? stdenv.lib
# A set providing `buildRustPackage :: attrsets -> derivation`
, rustPlatform ? pkgs.rustPlatform
, fetchFromGitHub ? pkgs.fetchFromGitHub
, gitignoreSrc ? null
, pkgconfig ? pkgs.pkgconfig
, gtk3 ? pkgs.gtk3
, glib ? pkgs.glib
, gobject-introspection ? pkgs.gobject-introspection
}:

let
  gitignoreSource =
    if gitignoreSrc != null
    then gitignoreSrc.gitignoreSource
    else (import (fetchFromGitHub {
      owner = "hercules-ci";
      repo = "gitignore";
      rev = "c4662e662462e7bf3c2a968483478a665d00e717";
      sha256 = "0jx2x49p438ap6psy8513mc1nnpinmhm8ps0a4ngfms9jmvwrlbi";
    }) { inherit lib; }).gitignoreSource;
in
rustPlatform.buildRustPackage rec {
  pname = "sample-flake-rust";
  version = "0.0.1";

  src = gitignoreSource ./.;

  buildInputs = [
    gtk3
    glib
    gobject-introspection
  ];
  nativeBuildInputs = [ pkgconfig ];
  cargoSha256 = "sha256-0hfmV4mbr3l86m0X7EMYTOu/b+BjueVEbbyQz0KgOFY=";

  meta = with stdenv.lib; {
    homepage = "";
    description = "Sample flake repository for a Rust application";
    license = licenses.mit;
  };
}