these 3 derivations will be built:
  /nix/store/prnzcyayipjzqbrbwppg53d3j8g77q84-freebuff-darwin-arm64.tar.gz.drv
  /nix/store/j2ra6bjkxhb2pwshwg4q6crpf3abgyqw-freebuff-0.2.19.drv
  /nix/store/ydv0sasryjbk3rimsi3f3pl7cldhgmkq-check-freebuff.drv