these 3 derivations will be built:
  /nix/store/zyjyzxn3z8b10g570dgmrfka7hr33ynq-source.drv
  /nix/store/ikzb8zzwh4zijja6jhhzlqsj7vl1gg9b-beads-viewer-0.25.2.drv
  /nix/store/s6d871szm784wyi6gyr9yn90m3xfy8ja-check-beads-viewer.drv