this derivation will be built:
  /nix/store/ck75dcay81gc44v7kcg69si7w7kcn871-weather-cli-0.1.0.drv
this path will be fetched (16.2 MiB download, 66.9 MiB unpacked):
  /nix/store/7nr7922ihsgzmyxxqjm4s233f6dglmzx-python3.14-mypy-2.1.0