{
  inputs = {
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils, ... }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
      in
      rec {
        packages = {
          pyrad3 = with pkgs; with pkgs.python3Packages; callPackage ./default.nix { };
        };
        devShell = pkgs.mkShell
          {
            buildInputs = with pkgs;
              [
                (python3.withPackages (ps: with ps; [
                  bandit
                  black
                  flake8
                  flit
                  isort
                  pylint
                  pytest
                ]))
                bashInteractive
              ];

            shellHook = ''
              export PYTHONPATH=''${PYTHONPATH:+''${PYTHONPATH}:}''$(pwd)/src/
            '';
          };
      });
}