this derivation will be built:
  /nix/store/lrgb36j53mh9g290dj1gcn3k5ivglcp1-bernstein-3.7.1.drv
this path will be fetched (525.1 KiB download, 2.9 MiB unpacked):
  /nix/store/rkn6lm1djr1sdhji98b7ivfrjrmkfcxn-python3.14-mcp-1.27.1