this derivation will be built:
  /nix/store/9glswhwcbxri42qz41ym278izpx443m3-niks3-pkcs11-signer-0.1.0.drv
this path will be fetched (569.7 KiB download, 2.3 MiB unpacked):
  /nix/store/xbk7vd7mvbwv7r8arh8lf51cpky9kf07-softhsm-2.7.0