these 3 derivations will be built:
  /nix/store/wnfw991cbnc5k9621l267d8j1wgas99c-freebuff-darwin-arm64.tar.gz.drv
  /nix/store/7vyrrskb6ya2jk920sylx3kvkf5lkpwc-freebuff-0.1.2.drv
  /nix/store/mgzhp027hws9lh9j2w9a59vac81svlz6-check-freebuff.drv