{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/23.05";

  outputs = { self, nixpkgs }: let
    system = "x86_64-linux";
    pkgs = nixpkgs.legacyPackages.${system};
    pyenv = pkgs.python3.withPackages (pypkgs: [
      pypkgs.markdown
      pypkgs.beautifulsoup4
    ]);
  in {
    devShells.${system} = {
      default = pkgs.mkShell {
        packages = [
          pyenv
          pkgs.entr
          pkgs.rsync
        ];
      };
    };
  };
}