these 3 derivations will be built:
  /nix/store/1mnba2329mkx1ap020gsnkvapyynjzd1-freebuff-linux-arm64.tar.gz.drv
  /nix/store/f12fkan29a0mhjj7vr3zd987zh5pvx13-freebuff-0.2.13.drv
  /nix/store/hkvqxj1axyasjwz9byfmbdi5fvl1ijsf-check-freebuff.drv