# shell.nix
{ pkgs ? import <nixpkgs> {} }:
let
  wallabagapi = pkgs.python38Packages.buildPythonPackage rec {
    pname = "wallabag-client";
    version = "1.8.2";

    src = pkgs.python38Packages.fetchPypi {
      inherit pname version;
      sha256 = "sha256-jqd0mehCHX/SVb2YHdDpCwKFrV5FjgLavdaMEo2jmfA=";
    };
    propagatedBuildInputs = with pkgs.python38Packages; [ httpx setuptools_scm ];
    doCheck = false;
  };
  customPython = pkgs.python38.buildEnv.override {
    extraLibs = [ pkgs.python38Packages.requests pkgs.python38Packages.icecream ];
  };
in
pkgs.mkShell {
  buildInputs = [
    customPython
    # other dependencies
  ];
  shellHook = ''
    # maybe set more env-vars
  '';
}