these 3 derivations will be built:
  /nix/store/3y18dr7izfxjyg0dp7irrkjxz512120h-freebuff-linux-arm64.tar.gz.drv
  /nix/store/jglwz9jghsyvgc7l2avzha1f2vyfzhiy-freebuff-0.2.21.drv
  /nix/store/nvkxmm6qk7jh3k7q7km5v782mc1bh525-check-freebuff.drv