{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
  };
  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
      in
      {
        packages.default = pkgs.callPackage ./default.nix { };
        devShells.default = pkgs.mkShell {
          packages = [
            (pkgs.bats.withLibraries (p: [
              p.bats-assert
              p.bats-support
              p.bats-file
            ]))
            pkgs.python3
            pkgs.python3Packages.flake8
            pkgs.shellcheck
            pkgs.shfmt
          ];
        };
      }
    );
}