{ pkgs, ... }:
let
  xonsh-direnv =
    ps:
    ps.buildPythonPackage rec {
      pname = "xonsh-direnv";
      version = "1.6.1";
      src = pkgs.fetchPypi {
        inherit pname version;
        hash = "sha256-Nt8Da1EtMVWZ9mbBDjys7HDutLYifwoQ1HVmI5CN2Ww=";
      };
    };
  xontrib-fish-completer =
    ps:
    ps.buildPythonPackage rec {
      pname = "xontrib-fish-completer";
      version = "0.0.1";
      src = pkgs.fetchPypi {
        inherit pname version;
        hash = "sha256-Kr1iolx6DxqgxVNtXwwfggkLrbH9BlilGAYZahvR+3Y=";
      };

      patchPhase = "sed -i -e 's/^dependencies.*$/dependencies = []/' pyproject.toml";
    };
in
{
  # We need fish for fish completions
  programs.fish.enable = true;

  users.users.artemis.shell = "/run/current-system/sw/bin/xonsh";

  programs.xonsh = {
    enable = true;
    config = ''
      $UPDATE_OS_ENVIRON = True
      xontrib load direnv fish_completer
    '';
    package = pkgs.xonsh.override {
      extraPackages = ps: [
        (xonsh-direnv ps)
        (xontrib-fish-completer ps)
      ];
    };
  };
}