these 3 derivations will be built:
  /nix/store/3pdfvvw94mbi2zgkspgc9wkri11lf65q-ZCode-3.16.3-mac-arm64.dmg.drv
  /nix/store/chdg56cyznbrddakgwzqi9816m12zc8z-zcode-3.16.3.drv
  /nix/store/i0avnv8ppv7gsc8kz4blrshkqizj918s-check-zcode.drv