these 3 derivations will be built:
  /nix/store/y862wb503zlvklpw5awqk2m4mrrc3fxy-source.drv
  /nix/store/6y99n0294izzfkr3aa19ji3ccbiyzamr-beads-viewer-0.26.0.drv
  /nix/store/7zixbkpfa8al3b8m496xf3692qcj3r48-check-beads-viewer.drv