these 2 derivations will be built:
  /nix/store/wcfqgwrbciwyc2rw59bylvpcyq5f1b5d-beads-viewer-0.25.2.drv
  /nix/store/5m198bpx6435wlri3wqhp4vnpf5qa8r6-check-beads-viewer.drv