these 2 derivations will be built:
  /nix/store/1h9gldi3li33hchn3w9zg86w6kzql1z1-harmonia-deps-3.1.0.drv
  /nix/store/gdq3wcq6ss807wxjlzpf7vdx27hbn1y3-harmonia-3.1.0.drv