these 3 derivations will be built:
  /nix/store/1d7j4p08rqm9cnsbcdpqx3818if46kdi-freebuff-linux-arm64.tar.gz.drv
  /nix/store/a8a16qm038p8qgpplyhw2ljp2xjxibzh-freebuff-0.0.192.drv
  /nix/store/qvpmdwg747j1ngpzpjfinvyxrbpsy31f-check-freebuff.drv