{
  description = "A Nix-flake-based Python development environment";

  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

  outputs = { self, nixpkgs }:
    let
      forEachSupportedSystem = f: nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed (system: f {
        pkgs = import nixpkgs { inherit system; };
      });
    in
    {
      devShells = forEachSupportedSystem ({ pkgs }: {
        default = pkgs.mkShell {
          packages = with pkgs; [ python311 virtualenv libffi libsodium jetbrains.pycharm-community ] ++
            (with pkgs.python311Packages; [ pip virtualenv ]);
        };
      });
    };
}