{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    systems.url = "github:nix-systems/x86_64-linux";
    flake-utils = {
      url = "github:numtide/flake-utils";
      inputs.systems.follows = "systems";
    };
  };
  outputs = {
    nixpkgs,
    flake-utils,
    ...
  }:
    flake-utils.lib.eachDefaultSystem (system: let
      pkgs = import nixpkgs {
        inherit system;
      };
    in {
      devShells.default = pkgs.mkShellNoCC {
        name = "wireguard config";
        packages = with pkgs; [
          wireguard-tools
          qrencode
          python3
        ];
      };
    });
}