{
  description = "Shiva Linux - Like Kali but based on NixOS";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";

    flake-parts.url = "github:hercules-ci/flake-parts";
  };

  outputs = inputs @ { self, flake-parts, nixpkgs, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {

      imports = [
        ./configurations.nix
      ];

      systems = [
        "x86_64-linux"
        "aarch64-linux"
      ];

      perSystem = { config, pkgs, system, ... }: {

        formatter = pkgs.nixpkgs-fmt;

        devShells = {
          default = pkgs.mkShell {
            shellHook = "exec $SHELL";
          };
        };


        packages = {
          hello = nixpkgs.legacyPackages.${system}.hello;
          default = self.packages.${system}.hello;
        };
      };

      flake = {
        nixosModules = {
          shiva = import ./modules/shiva;
        };
      };
    };
}