{
  description = "Description for the project";

  inputs = {
    flake-parts.url = "github:hercules-ci/flake-parts";
    flake-parts.inputs.nixpkgs.follows = "nixpkgs";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = {
    self,
    flake-parts,
    ...
  }:
    flake-parts.lib.mkFlake {inherit self;} {
      systems = ["x86_64-linux" "aarch64-linux"];
      perSystem = {
        config,
        self',
        inputs',
        pkgs,
        system,
        ...
      }: {
        packages.default = pkgs.callPackage ./default.nix {};
        devShells.default = pkgs.callPackage ./shell.nix {};
        checks = {
          treefmt = pkgs.callPackage ./nix/checks/treefmt.nix {};
          inherit
            (pkgs.callPackages ./nix/checks/nixos-test.nix {
              makeTest = import (pkgs.path + "/nixos/tests/make-test-python.nix");
            })
            unittests
            ;
        };
      };
      flake = {
        # The usual flake attributes can be defined here, including system-
        # agnostic ones like nixosModule and system-enumerating ones, although
        # those are more easily expressed in perSystem.
      };
    };
}