these 4 derivations will be built:
  /nix/store/vz80kys86za3qqm8vl74d42sfky98spf-clan-cli-source.drv
  /nix/store/923fx8mjlyw28111fgs6hy1cipbv2gbb-clan-cli.drv
  /nix/store/9c6llf9bdlmwppr6ar51vqz7gibg0jla-python3-3.13.15-env.drv
  /nix/store/yjh8nn4qml0r7d3yk32ls4j83srd53qa-clan-app-pytest.drv