these 2 derivations will be built:
  /nix/store/a56bwm7c1jwfgzh1iqpcm8hcvswsmrkx-freebuff-darwin-arm64.tar.gz.drv
  /nix/store/dbdla2dwj6gyg9jm8gbfz4iq03rg0kj9-freebuff-0.0.160.drv