these 3 derivations will be built:
  /nix/store/f8z9c57a9bj50a1s63vvrp6wfz2jjdhq-home-manager-path.drv
  /nix/store/z5qj5q9p6jw61hljb0s034mvvbzh1m9x-activation-script.drv
  /nix/store/iavjz401fspwbpdhwcji13yp0gbg2nlh-home-manager-generation.drv