these 3 derivations will be built:
  /nix/store/jqschsviawsi6sld1882isvwf6pny9i9-freebuff-darwin-arm64.tar.gz.drv
  /nix/store/gjy0nc58fnylcskaa7ps5b2driwyjjwz-freebuff-0.2.21.drv
  /nix/store/mhn5d985k2v958sg8zyr9wmbrn2z42dm-check-freebuff.drv