these 3 derivations will be built:
  /nix/store/kqwzj0dasf4mjl7drhxmxiw61b0cwymv-home-manager-path.drv
  /nix/store/4rw6vjdgw61llj2hmnpdf4gyniv2vm0f-activation-script.drv
  /nix/store/psg1g6455m4kihsix3lfx94w2bl8b8fd-home-manager-generation.drv