these 3 derivations will be built:
  /nix/store/rmp5275z0pr5s3xkimzpld7r9dg2nhsa-skills-src-with-lock.drv
  /nix/store/17skj6m2g2h693iy3n90fyl2r9dngl5g-skills-1.7.0.drv
  /nix/store/8m9jc9q3n6g0m01cvj5zswb6wq62i9kd-check-skills.drv